# Texas Go Math Kindergarten Lesson 13.1 Answer Key One More and One Less

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## Texas Go Math Kindergarten Lesson 13.1 Answer Key One More and One Less

Essential Question
How do you show one more and one less?

Explore  Explanation:
5 blue cubes
and one red cube
5  + 1 = 6
5 – 1 = 4
so, 4 blue cubes

Directions
Place 5 blue cubes on the counter outline. Trace the number. Add 1 red counter. Write the number to show the sum. Place 5 blue cubes on the counter outline. Write the number. Take one counter away. Write the number to show the difference.

Share and Show

Question 1.   Explanation:
Number of yellow counters 6
number of orange counters 1
Total number of counters 7
6 + 1 = 7

Question 2.   Explanation:
Number of yellow counters 7
number of orange counters 1
Total number of counters 8

Question 3.   Explanation:
Number of yellow counters 8
number of orange counters 1
Total number of counters 9

Question 4.   Explanation:
Number of yellow counters 9
number of orange counters 1
Total number of counters 10

Directions
1-4. Use two colors of cubes to show the sum. Write the number.

Question 5.  Explanation:
There are 10 cubes 9 cubes are red and 1 cube of blue
so, removed blue cube
10 – 1 = 9

Question 6.   Explanation:
The difference of 9 and 1 is 8

Question 7.   Explanation:
The difference of 8 and 1 is 7
8 – 1 = 7

Question 8.   Explanation:
The difference of 7 and 1 is 6
7 – 1 = 6

Directions
5-8. Use two colors of cubes to show the difference. Write the number.

Home Activity

• Show your child a set of 5 to 10 toys. Have your child create a set of objects that shows one more and one less.
Explanation: 5 + 1 = 6
a group of 5 ducks 1 more is added to it
6 – 1 = 4
a group of 6 ducks 1 is removed from it

Problem Solving

Question 9.  Explanation:
The sum of 5 and 1 is 6
5 + 1 = 6

Question 10.  Explanation:
The sum of 8 and 1 is 9
8 + 1 = 9
Lanie has 9 cubes now

Directions
9. Wesley has 5 marbles. Draw to show how many marbles Wesley has. Write the number. Annie has 1 more marble than Wesley. How many marbles does Annie have? Write the number. 10. Choose the correct answer. Lanie has 8 cubes. What number is one more?

### Texas Go Math Kindergarten Lesson 13.1 Homework and Practice

Question 1.  Explanation:
the sum of 4 and 1 is 5
4 + 1 = 5

Question 2.  Explanation:
The sum of 1 and 5 is 6
5 + 1 = 6

Directions
1-2. Draw one more cube to show the sum. Use a different color. Write the sum.

Texas Test Prep

Lesson Check

Question 3.  Explanation:
Selena has 3 brown toy bears
1 more bear is 4
3 + 1 = 4

Question 4.  