四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| 34 × 9 = 9 × __ | (11 + 4) × 3 = 33 + __ |
| (2 + 11) × 8 = 16 + __ | 96 × 9 = 100 × 9 - __ × 9 |
| 10 × 7 = 7 × __ | 91 × 7 = 7 × __ |
| (4 + 20) × 4 = 16 + __ | 69 + 17 = 17 + __ |
| 42 + 9 + 17 = (42 + __) + 17 | 29 × 6 = 6 × __ |
| 95 × 9 = (100 - __) × 9 | 96 × 5 = (100 - __) × 5 |
| (7 + 5) × 5 = 35 + __ | 62 × 2 = 2 × __ |
| (4 + 17) × 9 = 36 + __ | (5 + 17) × 6 = 30 + __ |
| (8 + 6) × 9 = 72 + __ | 20 + 92 = 92 + __ |
| (9 + 20) × 2 = 18 + __ | 95 × 7 = 100 × 7 - __ × 7 |
| 98 × 7 = 100 × 7 - __ × 7 | 34 + 42 + 44 = (34 + __) + 44 |
| 33 + 12 + 13 = (33 + __) + 13 | 23 × 2 = 2 × __ |
| 73 + 84 = 84 + __ | 98 × 6 = (100 - __) × 6 |
| 39 + 39 + 26 = (39 + __) + 26 | 30 × 6 = 6 × __ |
| 69 + 30 = 30 + __ | 75 × 4 = 4 × __ |
| 96 × 9 = (100 - __) × 9 | (17 + 13) × 9 = 153 + __ |
| 41 + 11 + 5 = (41 + __) + 5 | 57 × 2 = 2 × __ |
| 23 + 45 + 32 = (23 + __) + 32 | 96 × 5 = 100 × 5 - __ × 5 |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 34 × 9 = 9 × __ 34 | (11 + 4) × 3 = 33 + __ 12 |
| (2 + 11) × 8 = 16 + __ 88 | 96 × 9 = 100 × 9 - __ × 9 4 |
| 10 × 7 = 7 × __ 10 | 91 × 7 = 7 × __ 91 |
| (4 + 20) × 4 = 16 + __ 80 | 69 + 17 = 17 + __ 69 |
| 42 + 9 + 17 = (42 + __) + 17 9 | 29 × 6 = 6 × __ 29 |
| 95 × 9 = (100 - __) × 9 5 | 96 × 5 = (100 - __) × 5 4 |
| (7 + 5) × 5 = 35 + __ 25 | 62 × 2 = 2 × __ 62 |
| (4 + 17) × 9 = 36 + __ 153 | (5 + 17) × 6 = 30 + __ 102 |
| (8 + 6) × 9 = 72 + __ 54 | 20 + 92 = 92 + __ 20 |
| (9 + 20) × 2 = 18 + __ 40 | 95 × 7 = 100 × 7 - __ × 7 5 |
| 98 × 7 = 100 × 7 - __ × 7 2 | 34 + 42 + 44 = (34 + __) + 44 42 |
| 33 + 12 + 13 = (33 + __) + 13 12 | 23 × 2 = 2 × __ 23 |
| 73 + 84 = 84 + __ 73 | 98 × 6 = (100 - __) × 6 2 |
| 39 + 39 + 26 = (39 + __) + 26 39 | 30 × 6 = 6 × __ 30 |
| 69 + 30 = 30 + __ 69 | 75 × 4 = 4 × __ 75 |
| 96 × 9 = (100 - __) × 9 4 | (17 + 13) × 9 = 153 + __ 117 |
| 41 + 11 + 5 = (41 + __) + 5 11 | 57 × 2 = 2 × __ 57 |
| 23 + 45 + 32 = (23 + __) + 32 45 | 96 × 5 = 100 × 5 - __ × 5 4 |