四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| 95 × 4 = 100 × 4 - __ × 4 | 4 × 9 = 9 × __ |
| 95 × 6 = (100 - __) × 6 | 61 + 42 = 42 + __ |
| 72 + 38 = 38 + __ | 6 + 24 + 41 = (6 + __) + 41 |
| (11 + 19) × 2 = 22 + __ | 40 + 7 + 1 = (40 + __) + 1 |
| 13 + 35 + 46 = (13 + __) + 46 | 96 × 7 = 7 × __ |
| (20 + 6) × 4 = 80 + __ | 32 + 34 + 46 = (32 + __) + 46 |
| (16 + 1) × 9 = 144 + __ | 18 + 14 = 14 + __ |
| (7 + 20) × 4 = 28 + __ | 35 + 98 = 98 + __ |
| 24 + 50 = 50 + __ | 95 × 9 = 9 × __ |
| 19 × 6 = 6 × __ | 96 × 8 = (100 - __) × 8 |
| 63 + 82 = 82 + __ | 95 × 7 = 100 × 7 - __ × 7 |
| 98 + 87 = 87 + __ | 45 + 40 + 4 = (45 + __) + 4 |
| (8 + 10) × 5 = 40 + __ | 34 + 27 + 49 = (34 + __) + 49 |
| (11 + 8) × 7 = 77 + __ | 12 × 7 = 7 × __ |
| (6 + 17) × 8 = 48 + __ | 96 × 8 = (100 - __) × 8 |
| 7 + 22 + 1 = (7 + __) + 1 | 78 + 15 = 15 + __ |
| 97 × 9 = 100 × 9 - __ × 9 | 97 × 6 = 100 × 6 - __ × 6 |
| 14 × 2 = 2 × __ | 46 × 6 = 6 × __ |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 95 × 4 = 100 × 4 - __ × 4 5 | 4 × 9 = 9 × __ 4 |
| 95 × 6 = (100 - __) × 6 5 | 61 + 42 = 42 + __ 61 |
| 72 + 38 = 38 + __ 72 | 6 + 24 + 41 = (6 + __) + 41 24 |
| (11 + 19) × 2 = 22 + __ 38 | 40 + 7 + 1 = (40 + __) + 1 7 |
| 13 + 35 + 46 = (13 + __) + 46 35 | 96 × 7 = 7 × __ 96 |
| (20 + 6) × 4 = 80 + __ 24 | 32 + 34 + 46 = (32 + __) + 46 34 |
| (16 + 1) × 9 = 144 + __ 9 | 18 + 14 = 14 + __ 18 |
| (7 + 20) × 4 = 28 + __ 80 | 35 + 98 = 98 + __ 35 |
| 24 + 50 = 50 + __ 24 | 95 × 9 = 9 × __ 95 |
| 19 × 6 = 6 × __ 19 | 96 × 8 = (100 - __) × 8 4 |
| 63 + 82 = 82 + __ 63 | 95 × 7 = 100 × 7 - __ × 7 5 |
| 98 + 87 = 87 + __ 98 | 45 + 40 + 4 = (45 + __) + 4 40 |
| (8 + 10) × 5 = 40 + __ 50 | 34 + 27 + 49 = (34 + __) + 49 27 |
| (11 + 8) × 7 = 77 + __ 56 | 12 × 7 = 7 × __ 12 |
| (6 + 17) × 8 = 48 + __ 136 | 96 × 8 = (100 - __) × 8 4 |
| 7 + 22 + 1 = (7 + __) + 1 22 | 78 + 15 = 15 + __ 78 |
| 97 × 9 = 100 × 9 - __ × 9 3 | 97 × 6 = 100 × 6 - __ × 6 3 |
| 14 × 2 = 2 × __ 14 | 46 × 6 = 6 × __ 46 |