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 6.5 Answer Key Practice the Strategies.

## Texas Go Math Grade 1 Lesson 6.5 Answer Key Practice the Strategies

**Essential Question**

What strategies can you use to solve addition fact problems?

**Explore**

Think of different addition strategies. Write or draw two ways you can solve 4 + 3.

4 + 3 = ___

**For The Teacher**

- Encourage children to use different strategies to show two ways they can solve 4 + 3. Have children share answers and discuss all strategies.

Explanation:

**Math Talk**

**Mathematical Processes**

Explain why the sum is the same when you use different strategies.

Explanation:

The process is different but solution is same

**Model and Draw**

These are the ways you have learned to find sums.

Answer:

Explanation:

1,2 and 3 are count on

5 + 5 = 10

is a double fact

5 + 5 + 1 = 11

is a double plus 1

5 + 5 – 1 = 9

is a double fact minus 1

**Share and Show**

Question 1.

Answer:

Explanation:

The above box are examples of count on 1

Question 2.

Answer:

Explanation:

The above box are examples of count on 2

Question 3.

Answer:

Explanation:

The above box are examples of count on 3

Question 4.

Answer:

Explanation:

The above box are examples of Doubles

Question 5.

Answer:

Explanation:

The above box are examples of double plus 1 and double minus 1

**Problem Solving**

Add. Color doubles facts Color count on facts Color doubles plus one or doubles minus one facts

Question 6.

9 + 9 = ___

Answer:

Explanation:

the solution is written with colors

9 + 9

is a example of double fact

9 + 9 = 18

Question 7.

7 + 1 = ___

Answer:

Explanation:

the solution is written with colors

7 + 1

is a example of count on

7 + 1 = 8

Question 8.

5 + 3 = ___

Answer:

Explanation:

the solution is written with colors

5 + 3

is a example of count on

5 + 3 = 8

Question 9.

2 + 9 = ___

Answer:

Explanation:

the solution is written with colors

2 + 9

is a example of count on 2 + 9 = 11

Question 10.

7 + 3 = ___

Answer:

Explanation:

the solution is written with colors

7 + 3

is a example of count on

7 + 3 = 10

Question 11.

7 + 8 = ___

Answer:

Explanation:

the solution is written with colors

7 + 8 = 15

is a example of double plus one

7 +7 + 1 = 15

Question 12.

6 + 5 = ___

Answer:

Explanation:

the solution is written with colors

6 + 5 = 11

is a example of double plus one

5 + 5 + 1 = 11

Question 13.

2 + 8 = ____

Answer:

Explanation:

the solution is written with colors

2 + 8 = 10

is a example of count on

Question 14.

8 + 8 = ___

Answer:

Explanation:

the solution is written with colors

8 +8 = 16

is a double

**H.O.T. Make a counting on problem. Write the missing numbers.**

Question 15.

___ birds were in a tree.

___ more birds flew there.

How many birds are in the tree now?

Write the addition sentence to solve.

___ birds

Answer:

10 birds were in a tree.

6 more birds flew there.

10 + 6 = 16

16 birds are there now.

Question 16.

**H.O.T. Multi-Step** There are 8 hamburger buns in 1 package. Parker bought 2 packages of hamburger buns. One package had 1 extra bun. How many hamburger buns does he have?

___ + ___ + ___ = ___ hamburger buns

Answer:

8 + 8 + 1 hamburger buns

Explanation:

There are 8 hamburger buns in 1 package.

Parker bought 2 packages of hamburger buns.

8 + 8 = 16

One package had 1 extra bun.

16 + 1 = 17

17 hamburger buns that he have

**Daily Assessment Task**

**Choose the correct answer.**

Question 17.

What is the best way to solve this problem? David has 8 toy cars. He gets 2 more toy cars. How many toy cars does David have now?

(A) Count on 2.

(B) Use doubles.

(C) Use doubles minus 1.

Answer: A

Explanation:

David has 8 toy cars. He gets 2 more toy cars.

8 + 2 = 10

10 toy cars that David have now

Question 18.

Which fact is a doubles plus one fact?

(A) 8 + 1 = 9

(B) 8 + 8 = 16

(C) 8 + 9 = 17

Answer: C

Explanation:

8 + 9

Double plus one

8 + 8 + 1 = 17

Question 19.

**Reasoning** There are 5 cats at the front door. There are 4 cats at the back door. Explain how can you use the doubles fact 5 + 5 = 10 to help you find the number of cats at the doors.

Answer:

Explanation:

There are 5 cats at the front door. There are 4 cats at the back door.

4 + 4 + 1 = 9

double plus one

doubles fact 5 + 5 = 10 to

find answer

5 + 5 – 1

10 – 1 = 9

Question 20.

**Texas Test Prep** Which is the doubles plus one fact for 6 + 6?

(A) 6 + 7 = 13

(B) 6 + 6 = 12

(C) 6 + 5 = 11

Answer: B

Explanation:

a number added to itself is called double fact.

**Take Home Activity**

- Have your child point out a doubles fact, a doubles plus one fact, a doubles minus one fact, and a fact he or she solved by counting on. Hove him or her describe how each strategy works.

### Texas Go Math Grade 1 Lesson 6.5 Homework and Practice Answer Key

**Use the ways you learned to find sums.**

Question 1.

Answer:

Explanation:

The above box are examples of count on 1

Question 2.

Answer:

Explanation:

The above box are examples of count on 2

Question 3.

Answer:

Explanation:

The above box are examples of count on 3

Question 4.

Answer:

Explanation:

The above box are examples of double facts

Question 5.

Answer:

Explanation:

The above box are examples of double plus 1 and double minus 1

**Problem Solving**

**Write the addition sentence to solve.**

Question 6.

Jose has 2 boxes of crayons. One box has 7 crayons. The other box has 6 crayons. How many crayons does Jose have?

___ + ___ = ___ crayons

Answer:

7 + 6 = 13

Explanation:

Jose has 2 boxes of crayons. One box has 7 crayons. The other box has 6 crayons.

7 + 6 = 13

13 crayons that Jose have

**Texas Test Prep**

**Choose the correct answer.**

Question 7.

What is one way to solve this problem? Casey walks 6 blocks. Then she walks another 2 blocks. How many blocks did Casey walk?

(A) Use doubles

(B) Count on 2

(C) Use doubles minus 1.

Answer: B

Explanation:

6 + 2

is the example of count on 2

6 + 2 = 8

Question 8.

Which doubles fact helps you solve this problem?

Ariel collects 8 leaves. Then she collects 9 more leaves.

How many leaves does Ariel have now?

(A) 9 + 9 = 18

(B) 7 + 7 = 14

(C) 10 + 10 = 20

Answer: A

Explanation:

doubles fact helps 9 + 9 = 18 helps to solve problem

Ariel collects 8 leaves. Then she collects 9 more leaves.

9 + 9 – 1 = 17

17 leaves that Ariel have now

Question 9.

**Multi-Step** Charlie had 5 toys. He bought 2 more toys. Then he bought 3 more toys. How many toys did Charlie have?

(A) 7

(B) 8

(C) 10

Answer: C

Explanation:

Charlie had 5 toys. He bought 2 more toys.

5 + 2 = 7

Then he bought 3 more toys.

7 + 3 = 10

10 toys that Charlie have

Question 10.

Which is the doubles minus one fact for 8 + 8?

(A) 8 + 9 = 16

(B) 8 + 6 = 14

(C) 8 + 7 = 15

Answer: C

Explanation:

8 + 8

double minus fact

8 + 8 – 1 = 15