## Envision Math 2nd Grade Textbook Answer Key Topic 2.7 Making 10 to Add 8

Question 1.

Question 2.

Question 3.

Question 4.

Home Connection Your child learned to make 10 to help add with 8.
Home Activity Have your child use pennies to make a group of 8 and a group of 6. Ask your child to show you how to make a group of 10 pennies to help find the sum.
AF 1.1, Grade 1 Write and solve number sentences from problem situations that express relationships involving addition and subtraction. Also AF 1.0.

Guided Practice

Make 10 to add 8.
Use counters and your workmat

Question 1.

Question 2.

Do you understand? Why do you move 2 counters when making 10 to add 8?

Independent Practice

Make 10 to add 8.
Use counters and your workmat.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.
5 + 8 = ___

Question 8.
2 + 8 = ___

Question 9.
4 + 8 = ___

Question 10.
8 + 9 = ___

Question 11.
8 + 7 = ___

Question 12.
8 + 8 = ___

Number Sense
Write the missing number.

Question 13.
8 + 5 = + 3

Question 14.
6 + 8 = 10 +

Problem Solving

Solve the problems below.

Question 15.
Jordan picks 8 flowers. Cho picks 2 flowers. How many flowers do Jordan and Cho pick in all?
____ flowers

Question 16.
Gina has 8 pencils at school. She has 4 pencils at home. How many pencils does Gina have in all?
____ pencils