Prasanna

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Module 13 Assessment Answer Key.

Texas Go Math Grade 1 Module 13 Assessment Answer Key

Vocabulary

Question 1.
Complete the related facts. (p. 460)
9 + ________ = 15
6 + _________ = 15
15 – _________ = 9
15 – _________ = 6
Answer:
9 + 6 = 15
6 + 9 = 15
15 – 6 = 9
15 – 9 = 6

Concepts and Skills

Question 2.
Complete the related facts (TEKS 1.5.F, 1.5.G)
________ + 8 = 17
8 + 9 = __________

17 – ________ = 9
_________ – ____________ = ___________
Answer:
9 + 8 = 17
8 + 9 = 17
17 – 8 = 9
17 – 9 = 8

Question 3.
Subtract. Then add to check your answer. (TEKS 1.5.F, 1.S.G)

Answer:

Question 4.
Write the unknown numbers. Explain how you got your answer. (TEKS 1.5.F, 1.S.G)
________ + 5 = 13
13 – 5 = __________
Answer:
8 + 5 = 13
13 – 5 = 8

Choose the correct answer.

Question 5.
Which number will show expressions of the same value? (TEKS 1.5.E)
0 + 9 = _________ – 9
(A) 18
(B) 9
(C) 0
Answer:
18 – 9 = 9
18 will show expressions of the same value.
Thus the correct answer is option A.

Question 6.
Which is the related fact for 9 + 5 = 14? (TEKS 1.5.F, 1.5.G)
(A) 14 – 5 = 9
(B) 9 – 5 = 4
(C) 14 – 4 = 10
Answer:
9 + 5 = 14
14 – 5 = 9

Question 7.
Which addition fact can you use to check the subtraction for 15 – 6 = ________? (TEKS 1.5.F, 1.5.G)
(A) 5 + __________ = 15
(B) 6 + __________ = 15
(C) 10 = __________ = 15
Answer:
15 – 6 = 9
6 + 9 = 15
The correct answer is option B.

Question 8.
Which number completes the related fact? 9 + 9 = ________ and ________ – 9 = 9 (TEKS 1.5.F, 1.5.G)
(A) 19
(B) 16
(C) 18
Answer:
9 + 9 = 18
18 – 9 = 9
Thus the answer is 18 that is option C.

Question 9.
Which expressions have an equal value? (TEKS 1.5.E)
(A) 5 + 12 = 12 – 5
(B) 2 + 10 = 7 + 5
(C) 18 – 7 = 11 + 7
Answer:
(B) 2 + 10 = 7 + 5 = 12
Thus the correct answer is option B.

Refer to our Texas Go Math Grade 2 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 2 Lesson 17.2 Answer Key Add and Subtract Lengths.

Texas Go Math Grade 2 Lesson 17.2 Answer Key Add and Subtract Lengths

Essential Question
How can drawing a diagram help when solving problems about lengths?
Drawing diagrams is a useful problem solving heuristic. Diagrammatic representations have been shown to be superior to verbal representations when solving problems

Unlock the Problem
Nate had 23 centimeters of string. He gave 9 centimeters of string to Myra. How much string does Nate have now?

Read
What information am I given?
Nate had __ centimeters of string.
He gave ______ centimeters of string to Myra.

Plan
What is my plan or strategy?
I can _______________ to show the problem.

Solve
Show how you solve the problem.

Nate has ___ centimeters of string now.
Explanation:

Read
What information am I given?
Nate had 23 centimeters of string.
He gave 9 centimeters of string to Myra.

Plan
What is my plan or strategy?
I can Draw to show the problem.

Solve
Show how you solve the problem.

Nate has 14 centimeters of string now.
23 – 9 = 14

Home Connection

• Your child drew a diagram to represent a problem about lengths. The diagram can be used to choose the operation for solving the problem.

Draw a diagram. Then solve.

Question 1.
Ellie has a ribbon that is 12 centimeters long. Gwen has a ribbon that is 9 centimeters long. How many centimeters of ribbon do they have?

• What information am I given?
• What is my plan or strategy?

They have ___ centimeters of ribbon.
Answer: 3 centimeters

Explanation:
They have 3 centimeters of ribbon.
total 12 centimeters
Gwen has a ribbon that is 9 centimeters long
12 – 9 = 3

Question 2.
A strip of paper is 24 centimeters long. Justin tears 8 centimeters off of the strip. How long is the strip of paper now?

Now the strip of paper is ___ centimeters long.
Answer: 16 centimeters

Explanation:
Total strip of paper is 24 centimeters long
24 – 8 = 16
16 centimeters long is the strip of paper now

Math Talk
Mathematical Processes
Is your answer for the first problem reasonable? Explain.
Explanation:
Ellie has a ribbon that is 12 centimeters long.
Gwen has a ribbon that is 9 centimeters long.
12  – 9 = 3
3 centimeters of ribbon  they have

Share and Show

Draw a diagram. Then solve.

Question 3.
A chain of paper clips is 18 centimeters long. Sondra adds 6 centimeters of paper clips to the chain. How long is the chain now?

The chain is ___ centimeters long now.
Answer: 12 centimeters

Explanation:
A chain of paper clips is 18 centimeters long.
Sondra adds 6 centimeters of paper clips to the chain.
18 – 6 = 12
The chain is 12  centimeters long now.

Problem Solving

Question 4.
H.O.T. Multi-Step A chalk mark was 22 centimeters long. Greg erased part of the mark. Now it is 5 centimeters long. How many centimeters of the mark did Greg erase?


Greg erased __ centimeters of the mark.
Answer:
Greg erased 17 centimeters of the mark.

Explanation:
A chalk mark was 22 centimeters long.
Greg erased part of the mark.
Now it is 5 centimeters long.
22 – 5 = 17 centimeters long.

Question 5.
H.O.T. Start at the point on the number line. Draw a diagram to stand for a length of 12 centimeters.

Answer:

Explanation:
Started from the point
The point started at 4
to draw the standard length of 12 centimeters.
16 – 12 = 4

Daily Assessment Task

Draw a diagram to solve.

Question 6.
Use Diagrams Ella has a piece of yarn that is 25 centimeters long. She uses
8 centimeters of it for a project. How many centimeters of yarn does she have now?

Ella has ___ centimeters of yarn now.
Explain how your diagram shows that your answer is reasonable.

• What information am I given?
• What is my plan or strategy?

Answer:

Explanation:
Ella has a piece of yarn that is 25 centimeters long.
8 centimeters of it for a project.
25 – 8 = 17 centimeters long.
Ella has17 centimeters of yarn now.

Question 7.
Texas Test Prep Amber has a blue ribbon that she measures in centimeters. She draws this diagram to show the length of the ribbon. How many centimeters long is her ribbon?

(A) 20 centimeters
(B) 18 centimeters
(C) 22 centimeters
Answer: B
Explanation:
20 – 2 = 18 centimeters

Take Home Activity

• Have your child explain how he or she used a diagram to solve a problem in this lesson.
  Explanation:
  By measuring with the centimeter number line.

Texas Go Math Grade 2 Lesson 17.2 Homework and Practice Answer Key

Draw a diagram. Then solve.

Question 1.
Mary Beth has a ribbon that is 15 centimeters long. Alicia has a ribbon that is 9 centimeters long. How many centimeters of ribbon do they have?

They have ___ centimeters of ribbon.
Answer:

They have 24 centimeters of ribbon.
Explanation:
Mary Beth has a ribbon that is 15 centimeters long.
Alicia has a ribbon that is 9 centimeters long.
15 + 9 = 24

Problem Solving

Question 2.
Multi-Step A string is 21 centimeters long. Sue cuts off a piece of the string. Now the string is only 8 centimeters long. How many centimeters of string did Sue cut off?

Sue cut off ___ centimeters of string.
Answer:
Sue cut off 13 centimeters of string.

Explanation:
A string is 21 centimeters long.
Sue cuts off a piece of the string.
Now the string is only 8 centimeters long.
21 – 8 = 13

Texas Test Prep

Lesson Check

Choose the correct answer.

Question 3.
Faith has a ribbon that she measures in centimeters. She draws this diagram to show the length of the ribbon. How many centimeters long is her ribbon?

(A) 19 centimeters
(B) 16 centimeters
(A) 17 centimeters
Answer: B
Explanation:
17 – 1 = 16 centimeters
16 centimeters long is her ribbon

Question 4.
Jim draws a diagram to show the length of his two chains. How many centimeters of chain does Jim have?

(A) 12 centimeters
(B) 8 centimeters
(C) 10 centimeters
Answer: A
Explanation :
6 + 6 = 12
Jim have 12 centimeters of chain

Question 5.
Multi-Step Jan has a piece of yarn that is 24 centimeters long. She uses 6 centimeters of it for a project and 9 centimeters of it for another project. How many centimeters of yarn does she have left?

(A) 9 centimeters
(B) 19 centimeters
(C) 15 centimeters
Answer: A
Explanation:
Jan has a piece of yarn that is 24 centimeters long.
She uses 6 centimeters of it for a project and 9 centimeters of it for another project
6 + 9 = 15
24 – 15 = 9

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 13.6 Answer Key Expressions.

Texas Go Math Grade 1 Lesson 13.6 Answer Key Expressions

Explore

Color the cards that have the same value.

Answer:

FOR THE TEACHER • Have children color the cards that have the same value.
Answer:

Math Talk
Mathematical Processes

Explain why you can use two of the cards you color and an equal sign to show the same value.
Answer:

Model and Draw

The equal sign means that both sides have the same value.

Write a number to show expressions with the same value.
4 + 5 = ___________ + 4
Answer:
4 + 5 = 5 + 4 expression has the same value.

Share and Show

Which expressions show equal values? Circle your answer. Which expressions do not show equal values? Cross out your answer.
THINK: Are both sides equal?

Question 1.
9 – 2 = 8 – 1
1 + 2 = 3 – 2
Answer:
9 – 2 = 7
8 – 1 = 7
9 – 2 = 8 – 1
Both sides are equal
1 + 2 = 3
3 – 2 = 1
1 + 2 = 3 – 2
Both sides are not equal

Question 2.
4 + 1 = 5 + 2
6 – 6 = 7 – 7
Answer:
4 + 1 = 5
5 + 2 = 7
4 + 1 = 5 + 2
Both sides are not the
6 – 6 = 7 – 7
6 – 6 = 0
7 – 7 = 0
6 – 6 = 7 – 7
Both sides are equal

Question 3.
7 + 2 = 6 + 3
8 – 2 = 6 + 4
Answer:
7 + 2 = 9
6 + 3 = 9
7 + 2 = 6 + 3
Both sides are equal
8 – 2 = 6
6 + 4 = 10
8 – 2 = 6 + 4
Both sides are not equal

Question 4.
5 – 4 = 4 – 3
7 + 3 = 1 + 0
Answer:
5 – 4 = 1
4 – 3 = 1
5 – 4 = 4 – 3
Both sides are equal
7 + 3 = 10
1 + 0 = 1
7 + 3 = 1 + 0
Both sides are not equal

Problem Solving

Which expressions show equal values? Circle your answers. Which expressions do not show equal values? Cross out your answers.

Question 5.
1 + 9 = 9 – 1
8 + 1 = 2 + 7
10 + 9 = 12 + 7
Answer:
8 + 1 = 2 + 7
10 + 9 = 12 + 7
These two expressions shows the equal values
1 + 9 = 9 – 1
This expression as no equal values

Question 6.
7 + 1 = 5 + 3
8 + 5 = 5 + 8
6 + 2 = 4 + 4
Answer:
7 + 1 = 5 + 3
8 + 5 = 5 + 8
6 + 2 = 4 + 4
All the expressions as the same value

Question 7.
9 + 7 = 8 + 8
16 – 9 = 9 + 7
9 – 7 = 7 + 9
Answer:
9 + 7 = 8 + 8 expression has the same value.
9 + 7 = 8 + 8 and 9 – 7 = 7 + 9 expressions has no same values.

Question 8.
12 – 3 = 9 – 0
11 + 0 = 1 + 10
10 – 0 = 8 – 2
Answer:
12 – 3 = 9 – 0 expression has the same value.
11 + 0 = 1 + 10 expression has the same value.
10 – 0 = 8 – 2 expression has the same value.

Question 9.
Write numbers to show expressions of equal value.

_________ + ________ = _________ + _________
Answer:
2 + 3 = 10 – 5 expression has the same value.

Question 10.
H.O.T. Multi-Step Emily has 2 books. Then she gets 8 more books. Justin has 15 books. He gives away 5 books. Do they have an equal amount of books? Write the expressions to show how you solved the problem.

Answer:
Emily has 2 books and she gets 8 more books.
Total number of books near Emily are 10
Justin has 15 books and he gives away 5 books.
Total number of books near Justin are 10.
The expression is 2 + 8 = 15 – 5
The expression has the same value

Daily Assessment Task

Choose the correct answer.

Question 11.
Analyze The camp has 3 yellow tents and 2 red tents. Which expression shows the same value?

(A) 5 – 2
(B) 4 + 1
(C) 5 + 1
Answer:
The camp has 3 yellow tents and 2 red tents.
Total number of tents are 5.
The expression 4 + 1 shows the same value.

Question 12.
Which expressions show the same value?
(A) 6 + 2 = 11 – 3
(B) 8 – 1 = 8 + 1
(C) 5 + 7 = 13 – 4
Answer:
6 + 2 = 11 – 3 expression shows the same value.
6 + 2 = 11 – 3 and 5 + 7 = 13 – 4 expression has no same value.

Question 13.
Danielle has 4 red balls and 6 yellow balls. Which expression shows the same value?
(A) 5 + 7
(B) 8 + 2
(C) 13 – 6
Answer:
Given that
Danielle has 4 red balls and 6 yellow balls.
Total number of balls are 10
8 + 2 expression shows the same value.

Question 14.
Texas Test Prep Which number would make expressions of equal value?
10 – 3 = 2 + _________
(A) 5
(B) 6
(C) 7
Answer:
Number 5 makes the expression of equal values.

TAKE HOME ACTIVITY • Write 10 – 3 = 7 – 3 and 10 + 0 = 7 + 3 on a sheet of paper. Ask your child to explain which expressions show the same value.
Answer:
10 + 0 = 7 + 3 expression shows the same value

Texas Go Math Grade 1 Lesson 13.6 Homework and Practice Answer Key

Which expressions show equal values? Circle your answer. Which expressions do not show equal values? Cross out your answer.

Question 1.
7 + 4 = 5 + 6
13 – 5 = 8 + 5
10 + 0 = 9 + 1
Answer:
7 + 4 = 5 + 6 and 10 + 0 = 9 + 1 these expressions has same equal values.
13 – 5 = 8 + 5 expression has no equal values.

Question 2.
14 – 6 = 4 + 4
8 + 4 = 3 + 9
8 + 7 = 6 + 9
Answer:
14 – 6 = 4 + 4
8 + 4 = 3 + 9
8 + 7 = 6 + 9
All the expressions have same equal values.

Question 3.
17 – 9 = 3 + 4
2 + 7 = 13 – 4
8 + 3 = 8 – 3
Answer:
2 + 7 = 13 – 4 this expression has the equal values
17 – 9 = 3 + 4 and 8 + 3 = 8 – 3 these expressions has no equal values

Problem Solving

Question 4.
Multi-Step Daryl has 7 movies. Then he gets 5 more movies. Serena has 18 movies. She gives away 6 movies. Do they have an equal number of movies? Write the expressions to show how you solved the problem.

Answer:
Given that
Daryl has 7 movies
Daryl get 5 more movies
Serena has 18 movies
Serena gives away 6 movie
The expression is 7 + 5 = 18 – 6
Both sides of the expression is equal

Lesson Check

Choose the correct answer.

Question 5.
Kevin has 5 blue balloons and 4 yellow balloons. Which expression shows the same value?

(A) 3 + 6
(B) 9 – 4
(C) 9 + 1
Answer:
Kevin has 5 blue balloons
Kevin has 4 yellow balloons
Total number of balloons are 9
3 + 6 expression shows the same value.

Question 6.
Which expressions show the same value?
(A) 4 + 9 = 13 – 9
(B) 15 – 7 = 6 + 2
(C) 14 – 8 = 6 + 9
Answer:
The expression 15 – 7 = 6 + 2 shows the same value

Question 7.
Which number would make expressions of equal value?
13 – 4 = 7 + __________
(A) 2
(B) 11
(C) 3
Answer:
13 – 4 = 7 + 2
Number 2 makes the expressions of equal value

Question 8.
Steve has 14 pictures. He gives away 6. Which expressions show the same value?
(A) 5 + 3 = 4 + 6
(B) 5 – 3 = 14 – 6
(C) 5 + 3 = 14 – 6
Answer:
Given that
Steve has 14 pictures
Steve gives away 6 pictures
The expression shows the same value is
5 + 3 = 14 – 6

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Unit 3 Assessment Answer Key.

Texas Go Math Grade 1 Unit 3 Assessment Answer Key

Vocabulary

Write to complete the related facts. (p. 460)

Question 1.
9 + 7 = 16
7 + 9 = 16

16 – 7 = 9

Answer: 16 – 9 = 7

Concepts and Skills

Complete the model and the number sentence.

Question 2.
Alii has 10 grapes. She eats 5 grapes. How many grapes does she still have? (TEKS 1.5.D)

10 – 5 = _________
Answer: 5

Count forward by ones. Write the numbers. (TEKS 1.5.A)

Question 3.
35, 36, _______, _______, _______, _______
Answer:
36 + 1 = 37
37 + 1 = 38
38 + 1 = 39
39 + 1 = 40
35, 36, 37, 38, 39, 40

Count backward by ones. Write the numbers. (TEKS 1.5.A)

Question 4.
96, 95, _______, _______, _______, _______
Answer:
95 – 1 = 94
94 – 1 = 93
93 – 1 = 92
92 – 1 = 91
96, 95, 94, 93, 92, 91

Choose the correct answer.

Question 5.
There are 15 balloons. 8 balloons are green. The rest are purple. How many balloons are purple? (TEKS 1.5.D)

(A) 7
(B) 15
(C) 8
Answer:
Given,
There are 15 balloons. 8 balloons are green.
15 – 8 = 7
Thus the answer is option A.

Question 6.
Which is the related fact for 9 + 7 = 16? (TEKS 1.5.F, 1.5.G)
(A) 9 – 7 = 2
(B) 16 – 7 = 9
(C) 17 – 9 = 8
Answer: (B) 16 – 7 = 9

Question 7.
Which shows the same addends in a different order? (TEKS 1.5.F)
5 + 9 = 14
(A) 5 + 8 = 13
(B) 9 + 4 = 13
(C) 9 + 5 = 14
Answer: (C) 9 + 5 = 14

Question 8.
Which addition fact can you use to check the subtraction for 13 – 8 = _________? (TEKS 1.5.F, 1.5.G)
(A) 10 + _________ = 13
(B) 13 + _________ = 13
(C) 8 + _________ = 13
Answer: (C) 8 + _________ = 13

Question 9.
There are 3 turtles in the pond. Some more turtles join them. Now there are 9 turtles in the pond. How many turtles joined them? (TEKS 1.5.D)

(A) 11
(B) 6
(C) 12
Answer:
There are 3 turtles in the pond. Some more turtles join them. Now there are 9 turtles in the pond.
9 – 3 = 6
6 turtiles joined them.
Thus the answer is option B.

Choose the correct answer.

Question 10.
There are 12 deer in the woods. Seven of the deer run away. Five deer are left in the woods. Which fact can you use to check the subtraction? (TEKS 1.5.F, 1.5.G)
(A) 6 + 9 = 15
(B) 12 + 5 = 17
(C) 5 + 7 = 12
Answer: (C) 5 + 7 = 12

Question 11.
Which is the unknown number? (TEKS 1.5.F, 1.5.G)
_________ + 8 = 17
17 – 8 = __________
(A) 17
(B) 9
(C) 3
Answer:
_________ + 8 = 17
9 + 8 = 17
17 – 8 = 9
Thus the answer is option B.

Question 12.
Tamara has 3 dolls. Kelly has 7 dolls. How many fewer dolls does Tamara have than Kelly? (TEKS 1.5.D)

(A) 3
(B) 10
(C) 4
Answer:
Given,
Tamara has 3 dolls. Kelly has 7 dolls.
7 – 3 = 4
Thus the answer is option C.

Question 13.
Which number shows expressions of equal value? (TEKS 1.5.E)
6 + 3 = _________ – 2
(A) 10
(B) 6
(C) 11
Answer:
11 – 2 = 9
Thus the answer is option C.

Question 14.
Amy has 7 gifts. Then she gets 2 more gifts. Then she gets 3 more gifts. How many gifts does Amy have? (TEKS 1.5.F)

(A) 12
(B) 9
(C) 10
Answer:
7 + 2 + 3 = 12
Thus the answer is option A.

Choose the correct answer.

Question 15.
Which number is ten less than 57? (TEKS 1.5.C)
(A) 75
(B) 47
(C) 40
Answer:
57 – 10 = 47
Thus the answer is option B.

Question 16.
Use or real objects to solve.
There are 15 children in the park. ________ children are playing ball. _______ children are not playing ball.

• Write numbers to complete the story problem.
• Explain how you chose the numbers
• Write the related facts for the story problem.
  
• Explain how to use addition to check subtraction. (TEKS 1.3.D, 1.3.E, 1.5.G) Justify. Explain why your answer is reasonable.

Answer:

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 11.4 Answer Key Add or Subtract.

Texas Go Math Grade 1 Lesson 11.4 Answer Key Add or Subtract

Unlock the Problem

Nicole sees 16 turtles on the beach. Some turtles swim away. There are 9 turtles still on the beach. How many turtles swim away?

Answer:

Read

What information am I given?
_________ turtles
_________ swim away
__________ turtles still on the beach

Plan

What is my plan or strategy?
I can _____________

Solve

Show how you solve the problem.

16 turtles ______ swim away
9 turtles still on the beach
Answer:
Seven

Given,
There are sixteen turtles on the beach, some of them swim away
Now there are nine turtles still on the beach
By subtracting nine from sixteen we get seven,
So, seven number of turtles swim away.

HOME CONNECTION • Your child made o model to visualize the problem. The model helps your child see what part of the problem to find.
Answer:

Model and Draw

Make a model to solve. Use to help you.

Question 1.
There are 4 rabbits in the field. Some more rabbits come. Now there are 12 rabbits. How many rabbits come to the field?

4 rabbits __________ rabbits come
12 rabbits in the field
Answer:
Given,
There are 4 rabbits in the field, Some rabbits come to join the field
Now there are total of 12 rabbits in the field
We know that,
By subtracting four from twelve we get eight,
So eight number of rabbits come to join the field.

Question 2.
There are 14 birds in a tree. Some birds fly away. There are q birds still in the tree. How many birds fly away?

14 birds __________ birds fly away
9 birds still in the tree
Answer:
Given,
There are fourteen birds in a tree and some birds fly away.
Now there are nine birds still in the tree.
We know that,
By subtracting nine with fourteen we get five,
So five number of birds fly away from the tree.

Math Talk
Mathematical Processes

Explain how to find the unknown number.
Answer:

Share and Show

Make a model to solve. Use to help you.

Question 3.
There are 20 ducks in the pond. Then 10 ducks swim away. A How many ducks are still in the pond?

20 ducks
10 swim away
_________ ducks still in the pond
Answer:
Given,
There are twenty ducks in the pond,
Ten ducks in the pond swim away,
By subtracting ten from twenty then we get ten,
So there are ten ducks still in the pond.

Problem Solving

Question 4.
H.O.T. 3 eagles land in the trees. Now 12 eagles are in the trees. How many eagles were in the trees to start?

________ eagles
3 eagles land
12 eagles in the trees
Answer:
Given,
Three eagles landed on the tree,
Now there are twelve eagles on the tree,
By subtracting three from twelve we get nine,
So there are nine eagles to start to fly.

Question 5.
H.O.T. Multi-Step 8 squirrels are in the park. The same number of squirrels join them. How many squirrels are ¡n the park now?

8 squirrels __________ squirrels join them ___________ squirrels in the park
Answer:
Given,
There are eight squirrels in the park,
Same number of squirrels join the park,
By adding eight with eight we get sixteen
That means, there are eighteen squirrels in the park

Daily Assessment Task

Use objects to solve the problem. Choose the correct answer.

Question 6.
There are 6 children at the big tree. More children come to the tree. Now there are 14 children. How many children come to the tree?

(A) 9
(B) 6
(C) 8
Answer:
Given,
There are six children at the big tree, more children came to the tree
Now there are fourteen children at the big tree
By subtracting six from fourteen we get eight
So eight children came to the tree to join

Question 7.
Use Diagrams There are 15 birds in the tree. 7 birds are blue. The other birds are brown. How many birds are brown?

(A) 8
(B) 6
(C) 7
Answer:
Given,
There are fifteen birds in the tree,
Seven of them are blue andd the remaining birds are brown,
By subtracting seven from fifteen we get eight,
So there are eight number of brown birds in the tree

Question 8.
There are 4 more blue birds than red birds. There are 12 blue birds. How many red birds are there?

(A) 9
(B) 16
(C) 8
Answer:
Given,
There are four more blue birds than red birds
There are total of twelve blue birds
By subtracting four from twelve we get eight
So there are eight red birds

Question 9.
Texas Test Prep There are 13 fish in the tank. Some fish swim behind the rock. There are 8 fish in front of the rock. How many fish are behind the rock?
(A) 4
(B) 6
(C) 5
Answer:
Given,
There are thirteen fishes in the tank, some fishes are behind the rock
There are eight fishes in front of the rock,
By subtracting, eight from thirteen we get five,
So there are five fishes behind the rock.

TAKE HOME ACTIVITY • Ask your child to tell you how he or she solved o problem on this page.
Answer:

Texas Go Math Grade 1 Lesson 11.4 Homework and Practice Answer Key

Make a model to solve.

Question 1.
There are 13 frogs by the pond. 6 frogs hop away. How many frogs are still by the pond?

13 frogs
6 hop away
__________ frogs still by the pond
Answer:
Given,
There are thirteen frogs by the pond,
Six frogs hop away,
By subtracting six from thirteen we get seven,
So there are seven frogs still by the pond.

Question 2.
Ginny blows up 9 balloons. Now there are 18 balloons. How many balloons were there before?

___________ balloons before
9 balloons
18 balloons now
Answer:
Given,
Ginny blows up nine ballons
Now there are eighteen ballons,
By subtracting nine from eighteen we get nine,
There were nine ballons before.

Problem Solving

Question 3.
Multi-Step 6 friends play ball in the park. The same number of friends join them. How many friends are in the park now?

6 friends
friends join them
________ friends now
Answer:
Given,
There are six friends playing ball in the park,
The same number of friends joined them
By adding six with six we get twelve,
So there are total of twelve friends in the park.

Lesson Check

Choose the correct answer.

Question 4.
There are 9 desks in the room. The teacher brings in more desks. Now there are 12 desks. How many desks did the teacher bring in?

(A) 4
(B) 6
(C) 3
Answer:
Given,
There are 9 desks in the room,
Teacher brings in more desks,
Now there are twelve desks in the rooms,
So by subtracting three from twelve we get three,
So it means, three more desks were brought by the teacher.

Question 5.
A house has 9 more small windows than big windows. The house has 13 windows. How many big windows does it have?

(A) 4
(B) 5
(C) 6
Answer:
Given,
There are thirteen windows, nine of them are small windows
By subtracting nine from thirteen we get four,
So there are four big windows.

Question 6.
7 worms are in the garden. 6 more worms crawl over. How many worms are in the garden now?

(A) 14
(B) 12
(C) 13
Answer:
Given,
There are seven worms in the garden,
Six more worms crawl over in the garden,
By adding seven with six we get thirteen,
So there are total of thirteen worms in the garden.

Question 7.
There are 16 birds in a tree. Some birds fly away. There are 9 birds left in the tree. How many birds flew away?

(A) 9
(B) 7
(C) 8
Answer:
Given,
There are sixteen birds in a tree,
Some birds fly away,
There are nine birds left in the tree,
By subtracting nine from sixteen we get seven,
So there are seven birds that flew away.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Module 11 Assessment Answer Key.

Texas Go Math Grade 1 Module 11 Assessment Answer Key

Concepts and Skills

Use . Complete the model and the number sentence.

Question 1.
6 bunnies sit in the grass. 2 more bunnies join them. How many bunnies are in the grass now? (TEKS 1.5.D)

6 + 2 = ___________
Answer:

Given,
There are six bunnies in the grass and two bunnies join them
By adding six with two we get eight,
So there are total of eight bunnies in the grass.
6 + 2 = 8

Question 2.
There are 2 people in the house. Some more people go in the house. Now there are 6 people in the house. How many people go in the house? (TEKS 1.5.D)

2 + __________ = 6
Answer:

Given,
There are two people in the house, some people go into the house
Now there are total of 6 people in the house,
We know that,
By subtracting two from six we get four,
So four people went into the house.

Question 3.
Jennifer has 3 pennies. Brad has 9 pennies. How many fewer pennies does Jennifer have than Brad? (TEKS 1.5.D)

Answer:
Given,
Jennifer has three pennies, Brad has nine pennies
By subtracting three from nine we get six.
So Jennifer has six number of pennies less than Brad.

Use . Choose the correct answer

Question 4.
There are 9 beads. 5 beads are pink. The rest are yellow. How many beads are yellow? (TEKS 1.5.D)

(A) 5
(B) 9
(C) 4
Answer:

Given,
There are a total of nine beads, five of them are pink beads and the rest are yellow beads
By subtracting five from nine we get four,
So there are five pink beads and four yellow beads in total of nine beads,
The correct answer is option C

Question 5.
Mandy has 2 rocks. Peter has 8 rocks. How many more rocks does Peter have than Mandy? (TEKS 1.5.D)

(A) 8 – 2 = 6
(B) 6 – 2 = 4
(C) 8 – 3 = 5
Answer:

Given,
Mandy has two rocks, Peter has eight rocks
By subtracting two from eight we get six,
Peter has six more rocks than Mandy,
So the correct answer is option A.

Question 6.
Pat picks 18 flowers. 9 are yellow. The rest are pink. How many are pink? (TEKS 1.5.D)

(A) 8
(B) 9
(C) 7
Answer:

Given,
Pat picks 18 flowers, 9 of them are yellow and the rest are pink flowers
By subtracting nine from eighteen we get nine,
There are 9 yellow flowers and 9 pink flowers.
So the correct answer is option B

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 14.2 Answer Key Attributes of Two-Dimensional Shapes.

Texas Go Math Grade 1 Lesson 14.2 Answer Key Attributes of Two-Dimensional Shapes

Explore

Use two-dimensional shapes. Sort them into two groups. Draw to show your work.

Answer: The shapes that are shown below diagram.
Explanation:
CURVED:
* For the curved shapes, there are no sides and corners. Those shapes are called circles, ovals, semi-circles.
STRAIGHT:
* For the straight lines, there will be sides and corners(vertices). Those shapes are called square, rectangle, triangle, trapezium etc.

FOR THE TEACHER • Have children sort two-dimensional shapes into groups that are curved and straight. Have them draw the shapes to show how they sorted.
Answer: The groups were sorted below.
Explanation:

The curved shapes are circle, semi-circle, arc, oval.
The straight-line shapes are square, rectangle, triangle, right angle, pentagon, hexagon, rhombus, etc.

Math Talk
Mathematical Processes

Explain how you sorted the shapes into two groups. Name the shapes in each group.
Answer: I sorted the shapes by comparing the sorting rules.

Explanation:
– Shapes with no sides and no vertices. And it is having a curved shape.

Model and Draw

Some shapes have straight sides and vertices.

Answer: All the corners and sides are identified in the below diagram.
Explanation:

Share and Show

Use two-dimensional shapes. Draw and write to complete the chart.

Question 1.

Answer: The answer is in the below diagram.
Explanation:

Question 2.

Answer: The answer is in the below diagram.
Explanation:

Question 3.

Answer: The answer is in the below diagram.
Explanation:

Question 4.

Answer: The answer is in the below diagram.
Explanation:

Question 5.

Answer: The answer is in the below diagram.
Explanation:

Problem Solving

Use to trace each straight side.
Use to circle each vertex (corner).
Write the number of sides and vertices (corners).

Question 6.

_____4____ sides
_____4____ vertices
Answer: Rhombus
Explanation:

The rhombus is having 4 sides.
The rhombus is having 4 vertices.

Question 7.

_________ sides
_________ vertices
Answer: Hexagon
Explanation:

There are 6 sides.
There are 6 vertices.

Question 8.
Circle the rhombus.
Answer:

There are 4 sides and 4 corners.

Question 9.
Color the hexagon red.
Answer:

There are 6 sides and 6 corners(vertices).

H.O.T. Draw a picture to solve.

Question 10.
I am a shape with 3 straight sides and 3 vertices.
Answer: Triangle
Explanation:
Triangle has 3 sides and 3 vertices(corners). These sides and vertices will be shown in the below figure.

Question 11.
I am a shape with 4 straight sides that are the same length and 4 vertices.
Answer: Square
Explanation:
The square has 4 sides and 4 vertices. All sides are equal.

Question 12.
H.O.T. Multi-Step Draw two different shapes that each have only 4 vertices.
Answer: Rectangle and square.
Explanation:

Square and rectangle are having 4 corners and 4 sides.

 

Daily Assessment Task

Choose the correct answer.

Question 13.
Analyze Tom draws a closed shape with only a curved surface. Which shape does he draw?
(A) circle
(B) hexagon
(C) rectangle
Answer: Option A is correct.

Explanation:
In the question, Tom draws a closed shape having with a curved surface which is called the circle.

Question 14.
Use words from the box. Write the shape names. Write the number of sides and vertices (corners).
rhombus
rectangle
hexagon

__________ sides
__________ vertices
Answer: There are 6 sides .
Hexagon has 6 vertices.
Straight lines are parallel to each other.

__________ sides
__________ vertices
Answer: Rhombus
Explanation:

Rhombus has 4 sides and 4 vertices.
Rectangle

Rectangle has 4 sides and 4 vertices.

 

Question 15.
Texas Test Prep How many vertices does a triangle have?

(A) 2
(B) 3
(C) 5
Answer: Option B is correct.

Explanation:
Triangle has 3 vertices and 3 sides.

TAKE HOME ACTIVITY • Have your child draw a square, a trapezoid, and a triangle. For each shape, have him or her show you the sides and vertices, and tell how many of each.
Answer:

Explanation:
The Square has 4 sides and 4 corners.
Triangle has 3 sides and 3 corners.
The trapezoid has 4 sides and 4 corners.

Texas Go Math Grade 1 Lesson 14.2 Homework and Practice Answer Key

Use to trace each straight side.
Use to circle each vertex (corner).
Write the number of sides and vertices (corners).

Question 1.

__________ sides
__________ vertices
Answer: Rhombus

The rhombus has 4 corners and 4 sides.
Blueline represents the sides
Pink dots represent corners(vertices).

Question 2.

__________ sides
__________ vertices
Answer: Triangle.
Explanation:

Triangle has 3 sides and 3 corners(vertices).

Question 3.

__________ sides
__________ vertices
Answer: Rectangle

Rectangle has 4 sides and 4 corners. Opposite sides are equal.

Question 4.

__________ sides
__________ vertices
Answer: Hexagon

Hexagon has 6 sides and 6 vertices.

Problem Solving

Draw a picture to solve.

Question 5.
I am a shape with 6 straight sides and 6 vertices.
Answer: Hexagon
Explanation:
Hexagon has 6 sides and 6 vertices.

Question 6.
I am a shape with 4 straight sides that are not all the same length and 4 vertices.
Answer: Square
Explanation:
The square has 4 sides and 4 vertices. All sides are equal.

Lesson Check

Choose the correct answer.

Question 7.
Max draws a shape with 3 straight sides and 3 vertices. Which shape does he draw?
(A) rhombus
(B) triangle
(C) square
Answer: Option B is correct.
Explanation:
Triangle has 3 vertices and 3 sides.

Question 8.
Lella draws a shape with 6 straight sides and 6 vertices. Which shape does she draw?
(A) hexagon
(B) rhombus
(C) rectangle
Answer: Option A is correct.
Explanation:
Hexagon has 6 sides and 6 vertices. Lella draws a hexagon shape.

 

Question 9.
How many vertices does a rhombus have?
(A) 6
(B) 4
(C) 3
Answer:

 

Question 10.
Multi-step Sofie has 13 shapes. There are triangles, rectangles, and hexagons. Four shapes have 3 straight sides. Two shapes are hexagons. How many shapes are rectangles?
(A) 6
(B) 9
(C) 7
Answer: Option C is correct.

Explanation:
The number of shapes Sofie has=13
The number of 3 straight sides she have=4
The number of hexagons she have=2
Now we need to find out the number of shapes of rectangles.
By math sentence, it will be written as
No. of 3 straight sides+no. of hexagons=4+2=6.
Now we need to subtract 13 and 6=13-6=7.
Therefore, 7 shapes of rectangles are present.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 14.3 Answer Key Create Two-Dimensional Shapes.

Texas Go Math Grade 1 Lesson 14.3 Answer Key Create Two-Dimensional Shapes

Explore

Use pattern blocks. Draw to show your work.
Answer: A set of pattern blocks typically consists of six different shapes in six different colours. This includes a yellow hexagon, red trapezoid, green equilateral triangle, blue rhombus, orange square, and thin beige rhombus. Except for the trapezoid, the lengths of all sides of each shape are the same.

FOR THE TEACHER • Have children use pattern blocks to act out the following problem. Karen has some green pattern blocks. She made a shape with 3 sides and a shape with 4 sides. Draw the new shapes Karen could make.
Answer: Karen could make triangle shapes that have 3 sides and 3 vertices. And she could make squares, rectangles, rhombus, trapezoid.

 

Math Talk
Mathematical Processes

Describe the new shapes Karen made.
Answer: Triangle, square, rectangle, rhombus, trapezoid.
Explanation:
Trapezoid:

• Only one pair of the opposite side of a trapezium is parallel to each other
• The two adjacent sides of a trapezium are supplementary (180 degrees)

Rhombus:

• All the four sides of a rhombus are of the same measure
• The opposite sides of the rhombus are parallel to each other
• The opposite angles are of the same measure

Rectangle:

• The opposite sides of a rectangle are of equal length
• The opposite sides are parallel to each other
• All the interior angles of a rectangle are 90 degrees.
• The diagonals of a rectangle bisect each other.

Square:

• All the sides of the square are of equal measure
• The sides are parallel to each other
• All the interior angles of a square are at 90 degrees (i.e., right angle)
• The diagonals of a square perpendicular bisect each other

Triangle:

• The sum of all the angles of a triangle (of all types) is equal to 180°.
• The sum of the length of the two sides of a triangle is greater than the length of the third side.
• In the same way, the difference between the two sides of a triangle is less than the length of the third side.
• The side opposite the greater angle is the longest side of all the three sides of a triangle.

 

Model and Draw

How many do you need to make a ?

_________ make a .
Answer: 2
Explanation:

Two trapezoids need to join to make one hexagon. 

Share and Show

Use pattern blocks. Draw to show the blocks. Write how many blocks you used.

Question 1.
How many make a ?
_____3__ make a .
Answer: Let’s use pattern blocks to visualize the situation and say that a hexagon is 1 whole. Since 3 rhombuses make a hexagon, 1 rhombus represents and 2 rhombuses represent. For example, because the rhombus is one-third of a hexagon, we can think of the fraction “one-third” as “one rhombus.” For a hexagon, “third” and “rhombus” are two names for the same thing.

Question 2.
How many make a ?
__________ make a .
Answer: A trapezoid contains three triangles, or more depending on how you divide it. Where its longer parallel side is at the bottom, two triangles point up and one points down.

Problem Solving

Use pattern blocks. Draw to show the blocks. Write how many blocks you used.

Question 3.
How many make a ?
____2______ make a .
Answer: Yes, you will need 2 triangles for every hexagon.

we can break this image into six small triangles each formed by one of the sides of the hexagon and each of the triangles is divided in half by a line. we will count the number of triangles formed by each part and by taking two or more such parts together.

 

Question 4.
How many make a ?
__________ make a .
Answer: Two equilateral triangles can form a rhombus- it can also be formed by using a higher number of isosceles triangles.

Question 5.
H.O.T. Use me two times to make this shape. Which block am I? Circle a block to show your answer.

Answer: Two triangles are needed.

 

Question 6.
H.O.T. Multi-Step Use these pattern blocks to make the shape. Write how many times you used each block.

Answer:

Daily Assessment Task

Use pattern blocks. Choose the correct answer.

Question 7.
Use some to make a larger triangle. Draw the shape you made. Then draw a triangle with a different shape.
Answer: Triangles are just shaping with 3 (straight) sides. They can be big or small and can look somewhat different. Depending on the angles and the sides we can sort the triangles into different types.
   

Question 8.
Multi-Step Taylor used 3 to make a rectangle. Draw the shape he made. Then he used 4 to make a square. Draw the shape he made.
Answer: The diagram Taylor made in the below diagram.

Then he used 4 squares. Now it looks like in the below diagram.

Question 9.
Texas Test Prep How many do you use to make a ?
(A) 6
(B) 3
(C) 2
Answer: Option B is correct.

Explanation:
Let’s use pattern blocks to visualize the situation and say that a hexagon is 1 whole. Since 3 rhombuses make a hexagon, 1 rhombus represents and 2 rhombuses represent.

TAKE HOME ACTIVITY • Have your child explain how he or she solved Exercises 1 and 2.
Answer: Make your child do the activity by giving things that they can do in two-dimensional shapes. And make them solve the problems given in the exercises.

Texas Go Math Grade 1 Lesson 14.3 Homework and Practice Answer Key

Draw lines to show the shapes.

Question 1.
Draw lines to make this shape into 4 .

Answer: By dividing the square into 4 parts. we can make 4 squares.

Question 2.
Draw a line to make this shape into 2 .

Answer: Divide rhombus into two parts, then two triangles we can make easily.

Problem Solving

Question 3.
You could use me six times to make this shape. Which block am I? Circle a block to show your answer.

Answer: Triangle. We use triangles 6 times to get a hexagon.

Question 4.
You could use me three times to make this shape. Which block am I? Circle a block to show your answer.

Answer: Three identical isosceles triangles are joined together to make a trapezium. Each triangle has a base of b cm and a height of h cm.

Lesson Check

Choose the correct answer.

Question 5.
Jasmine makes this figure. Which shapes did she use?

(A) triangle and square
(B) rhombus and rectangle
(C) hexagon and rectangle
Answer: Option A is correct.

Question 6.
How many make a ?
(A) 2
(B) 4
(C) 3
Answer: Option C is correct.
Three identical isosceles triangles are joined together to make a trapezium.

Question 7.
Multi-Step Caitlin makes this shape with blocks.

Tyler makes a different shape with the same number of blocks. Which shape does Tyler make?

Answer: The first option is correct.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 14.4 Answer Key Compose More Shapes.

Texas Go Math Grade 1 Lesson 14.4 Answer Key Compose More Shapes

Explore

Use shapes to fill each outline. Draw to show your work.

Answer: The work has shown in the below diagram.
Explanation:

After drawing the outline then the first diagram will become a right angle triangle, square. And the second diagram becomes a triangle and a rectangle.

FOR THE TEACHER • Have children use two shapes to fill the outline on the left, and draw a line to show the two shapes. Then have children use three shapes to fill the outline on the right, again drawing lines to show the shapes.
Answer: Children can make squares and rectangles because those two shapes have a chance to fill the outline on the left side. This work can be shown in the below diagram.
Explanation:

The left outline had drawn in the figure. And another thing in the question asked was the need to draw 3 shapes to fill the outline right side.

They can make many shapes like a parallelogram, trapezium etc.

Math Talk
Mathematical Processes

Use the outline on the left to describe how two shapes can make another shape.
Answer: We can make a rectangle by using two squares.
Explanation:
By drawing the outline on the left we can make a rectangle. let’s see in the below diagram.

Model and Draw

Combine shapes to make a new shape.

How else could you combine 2 ?
Answer: We can make 4 squares and one rectangle, one square, 3 triangles.
Explanation:
It’s according to our division of a rectangle. So I divided the rectangle into 4 parts then it becomes 4 squares. And in other rectangles are also divided with possible outlines. The diagram is shown below.

Share and Show

Circle two shapes that can combine to make the shape on the left.

Question 1.

Answer: The two semicircles are needed to complete the whole shape which is called the circle.

Question 2.

Answer: The two squares are needed to complete the whole shape which is called the rectangle.

Question 3.

Answer: The two arcs are needed to complete the whole shape.

Problem Solving

Circle two shapes that can combine to make the shape on the left.

Question 4.

Answer: One arc and one square are needed to complete the whole shape.

Question 5.

Answer: One square and one triangle are needed to complete the whole shape.

H.O.T. Multi-Step Draw lines to show two different ways to combine the shapes on the left to make new shapes on the right.

Question 6.

Answer:  I had placed given shapes in the given blocks.

Question 7.

Answer: I had placed given shapes in the given blocks.

We need to think about how to put these shapes in the given block and then make different shapes.

Daily Assessment Task

Choose the correct answer.

Question 8.
Analyze Which shapes can combine to make a circle?

Answer: The first option is correct.

Question 9.
Multi-Step Alana builds this shape. Esther takes the shape apart. She uses the same blocks. Which new shape could Esther build?

Answer: The last option is correct.
Explanation: In the given shape we are having 6 triangles and two hexagons.

Question 10.
Texas Test Prep Which shapes can combine to make this new shape?

Answer: The middle one is correct.

TAKE HOME ACTIVITY • Ask your child to draw a new shape he or she can make by combining two triangles.
Answer: A square can be subdivided into two congruent isosceles right triangles.
Two congruent isosceles right triangles can be combined to form a square.

Texas Go Math Grade 1 Lesson 14.4 Homework and Practice Answer Key

Circle two shapes that can combine to make the shape on the left.

Question 1.

Answer: The representation has been done in the below diagram.

Question 2.

Answer: The representation has been done in the below diagram.

Problem Solving

Multi-Step Draw lines to show two different ways to combine the shapes on the left to make new shapes on the right.

Question 3.

Answer: I had placed given shapes in the given blocks.

We need to think about how to put these shapes in the given block and then make different shapes.

Lesson Check

Choose the correct answer.

Question 4.
Which shapes can combine to make a square?

Answer: The first one is correct.

Divide the square into two parts then we will get two triangles. So, If we join two triangles here we will get a square.

 

Question 5.
Which shapes can combine to make this new shape?

Answer: The last one is correct.
Explanation:
The division of shape is shown in the below diagram.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 13.2 Answer Key Identify Related Facts.

Texas Go Math Grade 1 Lesson 13.2 Answer Key Identify Related Facts

Explore

Use to show 4 + 9 = 13.
Draw to show a related subtraction fact.
Write the subtraction sentence.

Answer:
13 – 9 = 4

FOR THE TEACHER • Read the following problem. Brandon walks 9 miles in the morning. He walks 4 miles in the evening. How many miles does Brandon walk in a day? Write the related facts.
Answer:
Given that
Brandon walks in the morning = 9 miles
Brandon walks in the evening = 4 miles
Brandon walk in a day = 9 + 4 = 13
Math Talk
Mathematical Processes

Explain why your subtraction sentence is related to 4 + 9 = 13.
Answer:
13 – 9 = 4 is related to the 4 + 9 = 13 because in 13 – 9 = 4 the number 9 send to the RHS side then we get 13 = 4 + 9.

Model and Draw

Use the pictures. What two facts can you write?

These are related facts. If you know one of these facts, you also know the other fact.
Answer:
3 + 9 = 12
12 – 3 = 9.

Share and Show

Add and subtract. Circle the related facts.

Question 1.
6 + 4 = _________
10 – 4 =________
Answer:
6 + 4 = 10
10 – 4 = 6

Question 2.
_______ = 9 + 8
________ = 17 – 8
Answer:
17 = 9 + 8
9 = 17 – 8

Question 3.
9 + 5 = __________
9 – 5 = _________
Answer:
9 + 5 = 14
9 – 5 = 4

Question 4.
8 + 7 = ___________
15 – 7 = ___________
Answer:
8 + 7 = 15
15 – 7 = 8

Question 5.
_________ = 9 + 2
_________ = 9 – 2
Answer:
11 = 9 + 2
7 = 9 – 2

Question 6.
6 + 3 = __________
12 – 3 = ___________
Answer:
6 + 3 = 9
12 – 3 = 9

Question 7.
4 + 8 = ___________
12 – 8 = ___________
Answer:
4 + 8 = 12
12 – 8 = 4

Question 8.
_________ = 7 + 6
________ = 13 – 6
Answer:
13 = 7 + 6
7 = 13 – 6

Question 9.
9 + 9 = ___________
18 – 9 = _________
Answer:
9 + 9 = 18
18 – 9 = 9

Problem Solving

Question 10.
Use these numbers to write the related facts. 8 9 17

Answer:
8 + 9 = 17
17 – 9 = 8
17 – 8 = 9

Question 11.
H.O.T. Which number can not be used to write related number sentences? Explain.

Answer:
9 is used to wi in the related number sentences.

Explanation
15 – 8 = 7
15 – 7 = 8
15 – 6 = 9
Therefore
15 – 9 = 6
So 9 is the related number to the number of sentences

H.O.T. Multi-Step Use the numbers to write related addition and subtraction sentences.

Question 12.

Answer:
9 + 5 = 14
12 – 4 = 8

Question 13.

Answer:
7 + 6 = 13
13 – 6 = 7

Daily Assessment Task

Choose the correct answer.

Question 14.
Analyze 11 elephants are washing themselves. Some elephants stop. 5 elephants keep washing themselves. Which fact is not related?
(A) 11 – 6 = 5
(B) 5 + 6 = 11
(C) 6 – 5 = 1
Answer:
Given that
Elephants washing themselves = 11
Elephant keep washing themselves = 5
Some of the elephants are stop = 11 – 5 = 6
Total number of elephants = 11 + 5 = 16
6 – 5 is not related to the fact.
Option C is the correct answer.

Question 15.
9 elephants have their trunks up. 7 elephants do not have their trunks up. Which fact does not belong?

(A) 9 + 7 = 16
(B) 16 – 6 = 10
(C) 16 – 9 = 7
Answer:

Given that
Elephant have their trunks up = 9
Elephant do not have trunks up = 7
Total number of elephants = 16
16 – 6 is not related to the fact.

Question 16.
Jill has a garden. There are 4 roses. There are also 8 tulips. Which fact is not related?

(A) 8 – 4 = 4
(B) 4 + 8 = 12
(C) 12 – 8 = 4
Answer:
Given that
Total number of roses in the Jill garden = 4
Total number of tulips in the Jill garden = 8
Total number of flowers = 8 + 4 = 12
8 – 4 = 4 is not related to the fact.

Question 17.
Texas Test Prep Which subtraction fact is related to 6 + 8 = 14?
(A) 14 – 7 = 7
(B) 14 – 8 = 6
(C) 14 – 9 = 5
Answer:
6 + 8 = 14 is related to 14 – 8 = 6
Option B is the correct answer

TAKE HOME ACTIVITY • Write 7, 9, 16, +, -, and = on separate slips of paper. Have your child use the slips of paper to show related facts.
Answer:

Texas Go Math Grade 1 Lesson 13.2 Homework and Practice Answer Key

Add and subtract. Circle the related facts.

Question 1.
8 + 5 = _________
13 – 5 = __________
Answer:
8 + 5 = 13
13 – 5 = 8

Question 2.
4 + 3 = __________
10 – 3 = __________
Answer:
4 + 3 = 7
10 – 3 = 7

Question 3.
9 + 4 = ___________
9 – 4 = ___________
Answer:
9 + 4 = 13
9 – 4 = 5

Problem Solving

Question 4.
Which number can not be used to write related number sentences? Explain.
5 7 9 14
Answer:
9 + 5 = 141
4 – 5 = 9
Number 7 is not related to the number sentences.
Explanation
In the number sentences adding or subtracting of numbers are related to 5, 9, 14, and number 7 is not related.

Multi-Step Use the numbers to write related addition and subtraction sentences.

Question 5.

Answer:
4 + 5 = 9
8 + 5 = 13

Question 6.

Answer:
6 + 9 = 15
7 + 4 = 11

Lesson Check

Choose the correct answer.

Question 7.
13 squirrels are looking for nuts. Some squirrels stop. 6 squirrels keeping looking for nuts. Which fact is not related?

(A) 13 – 7 = 6
(B) 7 – 6 = 1
(C) 6 + 7 = 13
Answer:
Given that
Total number of squirrels looking for nuts = 13
Some of the squirrels are kept looking for nuts = 6
Total number of squirrels are stopped = 13 – 6 = 7
7 – 6 = 1 is not related
Option B is correct.

Question 8.
8 cats are sleeping. 9 cats are not sleeping. Which fact does not belong?

(A) 9 + 8 = 17
(B) 17 – 9 = 8
(C) 17 – 7 = 10
Answer:
Given that
Total number of cats sleeping = 8
Total number of cats not sleeping = 9
Total number of cats = 8 + 9 = 17
17 – 7 = 10 is not belonging to the fact.
Option C is correct.

Question 9.
Which subtraction fact is related to 8 + 3 = 11?
(A) 8 – 3 = 5
(B) 11 – 7 = 2
(C) 11 – 8 = 3
Answer:
8 + 3 = 11 is related to the subtraction 11 – 8 = 3.

Option C is the correct answer.

Question 10.
Multi-step Mike has 5 soccer balls and 7 baseballs. Which number can not be used to write related number sentences with 5 and 7?

(A) 8
(B) 5
(C) 12
Answer:
Given that,
Total number of soccer balls at Mike = 5
Total number of baseball at Mike = 7
Total number of balls = 5 + 7 = 12
The related number sentences with 5 and 7 is 12.
Option C is the correct answer.