四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| 46 + 5 + 41 = (46 + __) + 41 | 96 × 3 = (100 - __) × 3 |
| (11 + 4) × 5 = 55 + __ | 76 × 9 = 9 × __ |
| 35 + 10 + 34 = (35 + __) + 34 | (15 + 7) × 9 = 135 + __ |
| 87 + 62 = 62 + __ | (20 + 2) × 2 = 40 + __ |
| (6 + 16) × 3 = 18 + __ | 71 × 9 = 9 × __ |
| 35 + 19 + 49 = (35 + __) + 49 | 22 + 24 = 24 + __ |
| 24 + 7 + 7 = (24 + __) + 7 | 32 × 6 = 6 × __ |
| 58 × 6 = 6 × __ | 35 + 50 = 50 + __ |
| 92 × 5 = 5 × __ | 17 × 4 = 4 × __ |
| 67 × 2 = 2 × __ | 23 + 57 = 57 + __ |
| 98 × 3 = (100 - __) × 3 | 99 + 74 = 74 + __ |
| 36 + 14 + 42 = (36 + __) + 42 | 27 + 43 + 12 = (27 + __) + 12 |
| (4 + 4) × 7 = 28 + __ | 82 × 8 = 8 × __ |
| 99 × 4 = (100 - __) × 4 | 23 × 7 = 7 × __ |
| 40 + 12 + 20 = (40 + __) + 20 | 94 + 56 = 56 + __ |
| 95 × 4 = (100 - __) × 4 | (18 + 9) × 6 = 108 + __ |
| 98 × 8 = 100 × 8 - __ × 8 | (7 + 11) × 8 = 56 + __ |
| 98 + 13 = 13 + __ | 66 + 18 = 18 + __ |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 46 + 5 + 41 = (46 + __) + 41 5 | 96 × 3 = (100 - __) × 3 4 |
| (11 + 4) × 5 = 55 + __ 20 | 76 × 9 = 9 × __ 76 |
| 35 + 10 + 34 = (35 + __) + 34 10 | (15 + 7) × 9 = 135 + __ 63 |
| 87 + 62 = 62 + __ 87 | (20 + 2) × 2 = 40 + __ 4 |
| (6 + 16) × 3 = 18 + __ 48 | 71 × 9 = 9 × __ 71 |
| 35 + 19 + 49 = (35 + __) + 49 19 | 22 + 24 = 24 + __ 22 |
| 24 + 7 + 7 = (24 + __) + 7 7 | 32 × 6 = 6 × __ 32 |
| 58 × 6 = 6 × __ 58 | 35 + 50 = 50 + __ 35 |
| 92 × 5 = 5 × __ 92 | 17 × 4 = 4 × __ 17 |
| 67 × 2 = 2 × __ 67 | 23 + 57 = 57 + __ 23 |
| 98 × 3 = (100 - __) × 3 2 | 99 + 74 = 74 + __ 99 |
| 36 + 14 + 42 = (36 + __) + 42 14 | 27 + 43 + 12 = (27 + __) + 12 43 |
| (4 + 4) × 7 = 28 + __ 28 | 82 × 8 = 8 × __ 82 |
| 99 × 4 = (100 - __) × 4 1 | 23 × 7 = 7 × __ 23 |
| 40 + 12 + 20 = (40 + __) + 20 12 | 94 + 56 = 56 + __ 94 |
| 95 × 4 = (100 - __) × 4 5 | (18 + 9) × 6 = 108 + __ 54 |
| 98 × 8 = 100 × 8 - __ × 8 2 | (7 + 11) × 8 = 56 + __ 88 |
| 98 + 13 = 13 + __ 98 | 66 + 18 = 18 + __ 66 |