四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| 60 × 3 = 3 × __ | 72 × 4 = 4 × __ |
| 7 + 47 + 22 = (7 + __) + 22 | (13 + 5) × 6 = 78 + __ |
| 68 + 11 = 11 + __ | 95 × 9 = 9 × __ |
| 49 × 3 = 3 × __ | 91 + 21 = 21 + __ |
| 78 × 3 = 3 × __ | 76 + 76 = 76 + __ |
| 71 + 67 = 67 + __ | 98 × 2 = (100 - __) × 2 |
| (4 + 4) × 6 = 24 + __ | (1 + 8) × 4 = 4 + __ |
| 11 + 17 = 17 + __ | 98 × 4 = 4 × __ |
| 47 × 3 = 3 × __ | (12 + 6) × 2 = 24 + __ |
| 32 + 37 = 37 + __ | 95 × 4 = (100 - __) × 4 |
| 25 + 37 + 19 = (25 + __) + 19 | (3 + 7) × 6 = 18 + __ |
| 15 + 35 = 35 + __ | 20 + 10 + 25 = (20 + __) + 25 |
| (9 + 5) × 6 = 54 + __ | 10 + 15 = 15 + __ |
| 34 + 35 + 15 = (34 + __) + 15 | 95 × 9 = 100 × 9 - __ × 9 |
| 97 × 5 = 100 × 5 - __ × 5 | (1 + 15) × 3 = 3 + __ |
| 30 + 4 + 32 = (30 + __) + 32 | (11 + 10) × 3 = 33 + __ |
| 75 + 86 = 86 + __ | 98 × 8 = 100 × 8 - __ × 8 |
| 20 + 1 + 17 = (20 + __) + 17 | 96 × 7 = (100 - __) × 7 |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 60 × 3 = 3 × __ 60 | 72 × 4 = 4 × __ 72 |
| 7 + 47 + 22 = (7 + __) + 22 47 | (13 + 5) × 6 = 78 + __ 30 |
| 68 + 11 = 11 + __ 68 | 95 × 9 = 9 × __ 95 |
| 49 × 3 = 3 × __ 49 | 91 + 21 = 21 + __ 91 |
| 78 × 3 = 3 × __ 78 | 76 + 76 = 76 + __ 76 |
| 71 + 67 = 67 + __ 71 | 98 × 2 = (100 - __) × 2 2 |
| (4 + 4) × 6 = 24 + __ 24 | (1 + 8) × 4 = 4 + __ 32 |
| 11 + 17 = 17 + __ 11 | 98 × 4 = 4 × __ 98 |
| 47 × 3 = 3 × __ 47 | (12 + 6) × 2 = 24 + __ 12 |
| 32 + 37 = 37 + __ 32 | 95 × 4 = (100 - __) × 4 5 |
| 25 + 37 + 19 = (25 + __) + 19 37 | (3 + 7) × 6 = 18 + __ 42 |
| 15 + 35 = 35 + __ 15 | 20 + 10 + 25 = (20 + __) + 25 10 |
| (9 + 5) × 6 = 54 + __ 30 | 10 + 15 = 15 + __ 10 |
| 34 + 35 + 15 = (34 + __) + 15 35 | 95 × 9 = 100 × 9 - __ × 9 5 |
| 97 × 5 = 100 × 5 - __ × 5 3 | (1 + 15) × 3 = 3 + __ 45 |
| 30 + 4 + 32 = (30 + __) + 32 4 | (11 + 10) × 3 = 33 + __ 30 |
| 75 + 86 = 86 + __ 75 | 98 × 8 = 100 × 8 - __ × 8 2 |
| 20 + 1 + 17 = (20 + __) + 17 1 | 96 × 7 = (100 - __) × 7 4 |