Question

Julie has 15 nails. She uses 8 to build a birdhouse. She subtracts to find the number of nails left. Which addition sentence can she use to check her work???

Answer 1

15-8=n

Explanation:

n=7 if its with the variable OR you could use 15 - 8 = 7. just basic subtraction

Answer 2

8+7=15

Explanation: