# Texas Go Math Kindergarten Lesson 13.5 Answer Key Doubles

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## Texas Go Math Kindergarten Lesson 13.5 Answer Key Doubles

Essential Question
How can you write addition sentences for doubles?

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Explanation:
2 groups of 5 cube trains
5 + 5 = 10
so, 10 cubes in all
The sum of 5 and 5 is 10.

Directions
Place green cubes on the pictured cubes. Trace the number. Place blue cubes on the pictured cubes below. Trace the number. Add the sets. Write the sum.

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Question 1.

Explanation:
2 groups of 3 books each
3 + 3 = 6
so, 6 books in all.
The sum of 3 and 3 is 6

Question 2.

Explanation:
2 groups of 5 pencils each.
5 + 5 = 10
The sum of 5 and 5 is 10
so, 10 pencils in all.

Question 3.

Explanation:
The sum of 1 and 1 is 2
1 + 1 = 2
So, 2 bags in all.

Directions
1-3. Write the number in each group. Add. Write the sum. Trace the symbols.

Question 4.

Explanation:
2 groups of 5 crayons each
5 + 5 = 10
so, 10 crayons in all.
The sum of 5 and 5 is 10.

Question 5.

Explanation:
2 sets of 2 bags each
2 + 2 = 4
so, 4 bags in all.
The sum of 2 and 2 is 4

Question 6.

Explanation:
2 groups of 4 painting brushes
4 + 4 = 8
so, 8 painting brushes in all.
The sum of 4 and 4 is 8.

Directions
4-6. Write the number in each group. Add. Write the sum, Trace the symbols.

Home Activity

• Show your child a set of 1 to 5 objects such as crayons. Have your child create a set of objects that shows the some number of objects and find the sum.

Problem Solving

Question 7.

Explanation:
2 groups of 4 crayons
4 + 4 = 8
The sum of 4 and 4 is 8

Question 8.

Explanation:
2 groups of 4 books
4 + 4 = 8
so, 8 books in all.
The sum of 4 and 4 is 8

### Texas Go Math Kindergarten Lesson 13.5 Homework and Practice

Question 1.

Explanation:
2 groups of 3 crayons
3 + 3 = 6
so, 6 crayons in all.
The sum of 3 and 3 is 6

Question 2.

Explanation:
2 groups of 4 marbles
4 + 4 = 8
so, 8 marbles in all
the sum of 4 and 4 is 8

Question 3.

Explanation:
2 groups of 2 bags
2 + 2 = 4
the sum of 2 and 2 is 4

Directions
1-3. Write the number in each group. Add. Write the sum

Texas Test Prep

Lesson Check

Question 4.

Explanation:
The sum of 1 and 1 is 2
1 + 1 = 2

Question 5.

Explanation:
3 groups of crayon boxes
3 + 3 = 6
so, 6 crayon boxes

Directions
Choose the correct answer. 4-5. What doubles addition fact does the picture show?

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