Addition within 20
Add 4+4
8
Subtract 2-1
1
Sally bought 5 cookies. She ate 3 cookies. How many cookies does she have left?
2
Add:
12
+9
21
Subtract
23
- 9
14
Add 7+5
12
1
Mary had 3 cows. She bought 9 more. How many does she have in all?
12
Add
35
+7
42
Subtract
44
-2
42
Add 8+6
14
Subtract 15-8
7
John has 36 Pokemon cards. He bought 4 more. How many Pokemon cards does he have in all?
32
Add
73
+8
81
Subtract
68
-6
62
Add 9+8
17
Subtract 19-9
10
There are 38 pine trees in the park. 9 pine trees are cut down. How many trees are left?
29
Add
86
+ 8
94
Subtract
97
-9
88
20
Subtract 20-10
10
Jessica had 55 watermelons. She was given 7 watermelons. How many does she have in all?
62
Add
94
+2
96
Subtract
86
-8