四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| (14 + 6) × 3 = 42 + __ | 97 × 9 = (100 - __) × 9 |
| 32 + 18 = 18 + __ | 13 + 1 + 38 = (13 + __) + 38 |
| 94 + 79 = 79 + __ | 59 × 5 = 5 × __ |
| 7 + 35 + 16 = (7 + __) + 16 | (13 + 6) × 6 = 78 + __ |
| (19 + 18) × 3 = 57 + __ | 4 × 6 = 6 × __ |
| 18 + 26 + 8 = (18 + __) + 8 | 98 × 5 = 100 × 5 - __ × 5 |
| 95 × 2 = (100 - __) × 2 | 96 × 2 = (100 - __) × 2 |
| 45 + 43 + 41 = (45 + __) + 41 | 62 + 45 = 45 + __ |
| 49 × 7 = 7 × __ | 9 × 3 = 3 × __ |
| 15 + 14 + 11 = (15 + __) + 11 | 48 + 27 + 7 = (48 + __) + 7 |
| 37 × 9 = 9 × __ | (2 + 9) × 7 = 14 + __ |
| 13 × 3 = 3 × __ | 96 × 4 = (100 - __) × 4 |
| (14 + 3) × 7 = 98 + __ | 7 + 49 + 7 = (7 + __) + 7 |
| 37 × 6 = 6 × __ | (17 + 4) × 7 = 119 + __ |
| 48 + 31 + 46 = (48 + __) + 46 | 99 + 51 = 51 + __ |
| (2 + 14) × 8 = 16 + __ | 89 + 75 = 75 + __ |
| 66 + 78 = 78 + __ | 95 × 9 = (100 - __) × 9 |
| (6 + 3) × 3 = 18 + __ | 21 × 4 = 4 × __ |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| (14 + 6) × 3 = 42 + __ 18 | 97 × 9 = (100 - __) × 9 3 |
| 32 + 18 = 18 + __ 32 | 13 + 1 + 38 = (13 + __) + 38 1 |
| 94 + 79 = 79 + __ 94 | 59 × 5 = 5 × __ 59 |
| 7 + 35 + 16 = (7 + __) + 16 35 | (13 + 6) × 6 = 78 + __ 36 |
| (19 + 18) × 3 = 57 + __ 54 | 4 × 6 = 6 × __ 4 |
| 18 + 26 + 8 = (18 + __) + 8 26 | 98 × 5 = 100 × 5 - __ × 5 2 |
| 95 × 2 = (100 - __) × 2 5 | 96 × 2 = (100 - __) × 2 4 |
| 45 + 43 + 41 = (45 + __) + 41 43 | 62 + 45 = 45 + __ 62 |
| 49 × 7 = 7 × __ 49 | 9 × 3 = 3 × __ 9 |
| 15 + 14 + 11 = (15 + __) + 11 14 | 48 + 27 + 7 = (48 + __) + 7 27 |
| 37 × 9 = 9 × __ 37 | (2 + 9) × 7 = 14 + __ 63 |
| 13 × 3 = 3 × __ 13 | 96 × 4 = (100 - __) × 4 4 |
| (14 + 3) × 7 = 98 + __ 21 | 7 + 49 + 7 = (7 + __) + 7 49 |
| 37 × 6 = 6 × __ 37 | (17 + 4) × 7 = 119 + __ 28 |
| 48 + 31 + 46 = (48 + __) + 46 31 | 99 + 51 = 51 + __ 99 |
| (2 + 14) × 8 = 16 + __ 112 | 89 + 75 = 75 + __ 89 |
| 66 + 78 = 78 + __ 66 | 95 × 9 = (100 - __) × 9 5 |
| (6 + 3) × 3 = 18 + __ 9 | 21 × 4 = 4 × __ 21 |