四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| (14 + 4) × 4 = 56 + __ | 30 + 15 = 15 + __ |
| 98 × 4 = 100 × 4 - __ × 4 | 72 × 2 = 2 × __ |
| 96 + 38 = 38 + __ | (14 + 13) × 6 = 84 + __ |
| 54 × 8 = 8 × __ | 8 + 41 + 34 = (8 + __) + 34 |
| 43 + 48 + 42 = (43 + __) + 42 | 98 × 9 = 100 × 9 - __ × 9 |
| 32 + 74 = 74 + __ | 34 + 2 + 19 = (34 + __) + 19 |
| 95 × 6 = (100 - __) × 6 | (4 + 13) × 9 = 36 + __ |
| 41 + 65 = 65 + __ | (2 + 13) × 9 = 18 + __ |
| 17 × 4 = 4 × __ | 95 × 6 = (100 - __) × 6 |
| 30 × 3 = 3 × __ | 65 + 25 = 25 + __ |
| 97 × 5 = (100 - __) × 5 | 12 × 9 = 9 × __ |
| 73 + 96 = 96 + __ | 7 + 47 + 9 = (7 + __) + 9 |
| 10 + 49 + 10 = (10 + __) + 10 | 96 × 4 = (100 - __) × 4 |
| 50 + 49 + 25 = (50 + __) + 25 | 3 + 33 + 34 = (3 + __) + 34 |
| (13 + 8) × 2 = 26 + __ | (5 + 19) × 4 = 20 + __ |
| 5 + 28 + 46 = (5 + __) + 46 | (10 + 5) × 4 = 40 + __ |
| 96 × 4 = (100 - __) × 4 | 97 + 59 = 59 + __ |
| (1 + 17) × 8 = 8 + __ | 98 × 6 = 100 × 6 - __ × 6 |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| (14 + 4) × 4 = 56 + __ 16 | 30 + 15 = 15 + __ 30 |
| 98 × 4 = 100 × 4 - __ × 4 2 | 72 × 2 = 2 × __ 72 |
| 96 + 38 = 38 + __ 96 | (14 + 13) × 6 = 84 + __ 78 |
| 54 × 8 = 8 × __ 54 | 8 + 41 + 34 = (8 + __) + 34 41 |
| 43 + 48 + 42 = (43 + __) + 42 48 | 98 × 9 = 100 × 9 - __ × 9 2 |
| 32 + 74 = 74 + __ 32 | 34 + 2 + 19 = (34 + __) + 19 2 |
| 95 × 6 = (100 - __) × 6 5 | (4 + 13) × 9 = 36 + __ 117 |
| 41 + 65 = 65 + __ 41 | (2 + 13) × 9 = 18 + __ 117 |
| 17 × 4 = 4 × __ 17 | 95 × 6 = (100 - __) × 6 5 |
| 30 × 3 = 3 × __ 30 | 65 + 25 = 25 + __ 65 |
| 97 × 5 = (100 - __) × 5 3 | 12 × 9 = 9 × __ 12 |
| 73 + 96 = 96 + __ 73 | 7 + 47 + 9 = (7 + __) + 9 47 |
| 10 + 49 + 10 = (10 + __) + 10 49 | 96 × 4 = (100 - __) × 4 4 |
| 50 + 49 + 25 = (50 + __) + 25 49 | 3 + 33 + 34 = (3 + __) + 34 33 |
| (13 + 8) × 2 = 26 + __ 16 | (5 + 19) × 4 = 20 + __ 76 |
| 5 + 28 + 46 = (5 + __) + 46 28 | (10 + 5) × 4 = 40 + __ 20 |
| 96 × 4 = (100 - __) × 4 4 | 97 + 59 = 59 + __ 97 |
| (1 + 17) × 8 = 8 + __ 136 | 98 × 6 = 100 × 6 - __ × 6 2 |