Question

Heather wanted to read 15 books before the end of summer. She has already read 6 books. Which equation could be used to find how many more books Heather needs to read to reach her goal

Answer 1

9 books left to read using subtraction

Explanation:

You can use subtraction to take away 6 books from the ultimate goal of 15 to realize how many books are left that she has to read.

Answer 2

15-6

Explanation:

she wanted to read 15 and she's already read 6 so take 6 away from the amount you originally needed and you get 9 left to read