15+2=
17
20-5
15
15-7=
8
Joey had 11 rocks. He found 4 more rocks. How many rocks does Joey have now?
15 rocks
A crayon box holds 16 crayons. Matt counted 14 crayons in the box. How many crayons are missing?
2 crayons
20+17=
37
35-10=
25
16+8=
22
Paige and Payton went to the store and bought 7 boxes of cookies each. How many boxes of cookies did they buy in all?
14 boxes of cookies
Christian bought 18 cookies at the grocery store. His brother Steven ate 6 cookies. How many cookies does Christian have now?
12 cookies
50+5=
19-5
50-20=
30
Sean saved $6. He got $3 for his birthday. Sean earned $1 for chores. How much money did Sean have then?
$10
Nina had 9 stuffed animals. She lost 5 stuffed animals. She donated 1. How many stuffed animals does she have now?
3 stuffed animal
20+3=
15-5=
55+5=
60
Anne had 25 cents. She found 10 cents on the sidewalk. She sold a bag of chips for 10 cents. How much money did Anne have now?
45 cents
Jeff had 18 stickers. He used 3 of them this morning. He gave 10 to his friend Ed. How many stickers did Jeff have then?
5 stickers
21+6+=
27
20-9=
1. 50-8=
42
Trevor did his math homework for 10 minutes. He did his spelling homework for 5 minutes. He practiced the piano for 5 minutes. How much time did Trever spend working all together?
20 minutes
What is the opposite of subtraction?
Addition