20以内加减法练习
18 - 13 = | 19 + 19 = | 18 + 18 = | 14 - 6 = |
18 - 18 = | 13 - 10 = | 14 + 14 = | 15 - 7 = |
17 + 16 = | 16 - 12 = | 15 - 11 = | 15 - 8 = |
11 - 6 = | 19 + 10 = | 16 + 14 = | 14 + 18 = |
13 - 12 = | 11 + 12 = | 19 + 17 = | 19 - 18 = |
13 + 14 = | 18 - 10 = | 11 + 16 = | 16 + 12 = |
16 + 17 = | 15 + 19 = | 18 - 9 = | 13 - 5 = |
18 + 14 = | 11 - 2 = | 14 - 9 = | 17 + 15 = |
14 - 14 = | 15 + 10 = | 16 + 16 = | 17 + 18 = |
19 - 19 = | 16 - 10 = | 13 - 13 = | 12 + 15 = |
12 - 6 = | 12 - 12 = | 11 + 17 = | 10 + 18 = |
11 - 7 = | 18 - 15 = | 12 + 15 = | 18 - 12 = |
13 - 4 = | 16 + 19 = | 19 - 13 = | 10 + 19 = |
15 + 11 = | 12 + 19 = | 15 + 16 = | 13 - 9 = |
11 - 8 = | 17 + 11 = | 12 - 11 = | 13 + 13 = |
12 + 16 = | 12 - 7 = | 11 - 3 = | 10 + 15 = |
13 + 11 = | 13 + 17 = | 18 + 10 = | 10 + 12 = |
11 + 10 = | 14 + 11 = | 17 - 9 = | 12 + 17 = |
12 + 10 = | 12 + 12 = | 12 + 11 = | 12 + 12 = |
12 + 17 = | 13 + 19 = | 11 + 19 = | 16 + 11 = |
17 - 11 = | 10 + 13 = | 14 - 12 = | 10 + 16 = |
17 - 14 = | 19 + 14 = | 16 - 11 = | 10 + 17 = |
18 + 19 = | 17 - 13 = | 10 + 11 = | 12 - 9 = |
18 - 16 = | 17 + 19 = | 14 - 7 = | 15 - 6 = |
12 + 14 = | 10 + 10 = | 18 + 17 = | 17 + 14 = |