四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| 96 × 9 = (100 - __) × 9 | 75 × 8 = 8 × __ |
| 71 + 88 = 88 + __ | 80 + 12 = 12 + __ |
| 85 + 10 = 10 + __ | (3 + 18) × 3 = 9 + __ |
| 28 + 92 = 92 + __ | 97 × 5 = (100 - __) × 5 |
| (2 + 19) × 8 = 16 + __ | 99 × 6 = (100 - __) × 6 |
| 91 + 40 = 40 + __ | 29 + 6 + 37 = (29 + __) + 37 |
| (13 + 18) × 4 = 52 + __ | 82 + 18 = 18 + __ |
| 8 + 17 + 37 = (8 + __) + 37 | 95 × 6 = 100 × 6 - __ × 6 |
| (19 + 15) × 6 = 114 + __ | (19 + 13) × 4 = 76 + __ |
| 17 × 5 = 5 × __ | 23 + 24 + 18 = (23 + __) + 18 |
| (6 + 17) × 8 = 48 + __ | 9 + 48 + 23 = (9 + __) + 23 |
| 49 + 22 = 22 + __ | 95 × 3 = (100 - __) × 3 |
| 97 × 3 = (100 - __) × 3 | 95 × 4 = 4 × __ |
| 66 × 7 = 7 × __ | 54 × 5 = 5 × __ |
| 24 × 3 = 3 × __ | 96 × 6 = (100 - __) × 6 |
| 26 × 8 = 8 × __ | 18 + 64 = 64 + __ |
| 5 + 45 + 16 = (5 + __) + 16 | 38 + 11 + 10 = (38 + __) + 10 |
| 10 + 24 + 1 = (10 + __) + 1 | (14 + 2) × 6 = 84 + __ |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 96 × 9 = (100 - __) × 9 4 | 75 × 8 = 8 × __ 75 |
| 71 + 88 = 88 + __ 71 | 80 + 12 = 12 + __ 80 |
| 85 + 10 = 10 + __ 85 | (3 + 18) × 3 = 9 + __ 54 |
| 28 + 92 = 92 + __ 28 | 97 × 5 = (100 - __) × 5 3 |
| (2 + 19) × 8 = 16 + __ 152 | 99 × 6 = (100 - __) × 6 1 |
| 91 + 40 = 40 + __ 91 | 29 + 6 + 37 = (29 + __) + 37 6 |
| (13 + 18) × 4 = 52 + __ 72 | 82 + 18 = 18 + __ 82 |
| 8 + 17 + 37 = (8 + __) + 37 17 | 95 × 6 = 100 × 6 - __ × 6 5 |
| (19 + 15) × 6 = 114 + __ 90 | (19 + 13) × 4 = 76 + __ 52 |
| 17 × 5 = 5 × __ 17 | 23 + 24 + 18 = (23 + __) + 18 24 |
| (6 + 17) × 8 = 48 + __ 136 | 9 + 48 + 23 = (9 + __) + 23 48 |
| 49 + 22 = 22 + __ 49 | 95 × 3 = (100 - __) × 3 5 |
| 97 × 3 = (100 - __) × 3 3 | 95 × 4 = 4 × __ 95 |
| 66 × 7 = 7 × __ 66 | 54 × 5 = 5 × __ 54 |
| 24 × 3 = 3 × __ 24 | 96 × 6 = (100 - __) × 6 4 |
| 26 × 8 = 8 × __ 26 | 18 + 64 = 64 + __ 18 |
| 5 + 45 + 16 = (5 + __) + 16 45 | 38 + 11 + 10 = (38 + __) + 10 11 |
| 10 + 24 + 1 = (10 + __) + 1 24 | (14 + 2) × 6 = 84 + __ 12 |