If 5+4=9, what is 4+5? 

(Commutative property of addition)

Answer: ___________________________________

1: 9

Solve 2+3+5?

(Associative property of addition)

Answer: ___________________________________

2: 10

If 7 + 6 = 13, what is 6 + 7? 

(Commutative property of addition)

Answer: ___________________________________

3: 13

Use the associative property to solve 1 + 5 + 9=? 

Hint: Group 1 + 9 first.

4: 15

True or False: 3 + 7 = 7 + 3. 

(Commutative property of addition)

A. True

B. False

5: true

Solve (4+8)+2 using the associative property.

Answer: ___________________________________

6: 14

If 6 + 3 + 1 = 10, how could you group the numbers to make adding them easier? 

(Associative property of addition)

A. 6 + (3+1)=10

B. (6+1)+3=10

C. (6+3)+1=10

7: (6+3)+1=10

Fill in the blank: 8 + 2 = 2 + ___? 

(Commutative property of addition)

Answer: ___________________________________

8: 8

If you know 4+6=10, how can you use that to find 6+4?

9: 6+4 = 4+6

Solve 3 + ( 2 + 7 ) using the associative property.

10: 3 + 9 = 12