四年级下册 运算律（笔算）
姓名：_______________
学号：_______________
用时：_______________
| 74 + 93 = 93 + __ | 4 + 29 + 23 = (4 + __) + 23 |
| 65 + 70 = 70 + __ | 27 + 53 = 53 + __ |
| 85 × 9 = 9 × __ | 48 + 36 + 18 = (48 + __) + 18 |
| 54 × 4 = 4 × __ | 37 + 83 = 83 + __ |
| (9 + 2) × 3 = 27 + __ | 96 × 8 = 100 × 8 - __ × 8 |
| 43 + 42 + 22 = (43 + __) + 22 | 11 × 5 = 5 × __ |
| 12 + 76 = 76 + __ | 91 + 58 = 58 + __ |
| (8 + 9) × 7 = 56 + __ | 98 × 8 = 100 × 8 - __ × 8 |
| (20 + 13) × 5 = 100 + __ | 96 × 8 = 100 × 8 - __ × 8 |
| 26 × 4 = 4 × __ | 30 + 9 + 25 = (30 + __) + 25 |
| 99 × 3 = 100 × 3 - __ × 3 | 44 × 9 = 9 × __ |
| (6 + 18) × 6 = 36 + __ | 97 × 9 = 9 × __ |
| 28 + 37 + 27 = (28 + __) + 27 | 60 + 97 = 97 + __ |
| 99 × 8 = 100 × 8 - __ × 8 | 63 × 2 = 2 × __ |
| 13 + 61 = 61 + __ | (3 + 16) × 6 = 18 + __ |
| 99 × 5 = 100 × 5 - __ × 5 | 99 × 7 = 100 × 7 - __ × 7 |
| 23 + 31 = 31 + __ | 31 + 13 + 4 = (31 + __) + 4 |
| (11 + 15) × 5 = 55 + __ | 50 + 44 = 44 + __ |
四年级下册 运算律（笔算）（答案）
姓名：_______________
学号：_______________
用时：_______________
| 74 + 93 = 93 + __ 74 | 4 + 29 + 23 = (4 + __) + 23 29 |
| 65 + 70 = 70 + __ 65 | 27 + 53 = 53 + __ 27 |
| 85 × 9 = 9 × __ 85 | 48 + 36 + 18 = (48 + __) + 18 36 |
| 54 × 4 = 4 × __ 54 | 37 + 83 = 83 + __ 37 |
| (9 + 2) × 3 = 27 + __ 6 | 96 × 8 = 100 × 8 - __ × 8 4 |
| 43 + 42 + 22 = (43 + __) + 22 42 | 11 × 5 = 5 × __ 11 |
| 12 + 76 = 76 + __ 12 | 91 + 58 = 58 + __ 91 |
| (8 + 9) × 7 = 56 + __ 63 | 98 × 8 = 100 × 8 - __ × 8 2 |
| (20 + 13) × 5 = 100 + __ 65 | 96 × 8 = 100 × 8 - __ × 8 4 |
| 26 × 4 = 4 × __ 26 | 30 + 9 + 25 = (30 + __) + 25 9 |
| 99 × 3 = 100 × 3 - __ × 3 1 | 44 × 9 = 9 × __ 44 |
| (6 + 18) × 6 = 36 + __ 108 | 97 × 9 = 9 × __ 97 |
| 28 + 37 + 27 = (28 + __) + 27 37 | 60 + 97 = 97 + __ 60 |
| 99 × 8 = 100 × 8 - __ × 8 1 | 63 × 2 = 2 × __ 63 |
| 13 + 61 = 61 + __ 13 | (3 + 16) × 6 = 18 + __ 96 |
| 99 × 5 = 100 × 5 - __ × 5 1 | 99 × 7 = 100 × 7 - __ × 7 1 |
| 23 + 31 = 31 + __ 23 | 31 + 13 + 4 = (31 + __) + 4 13 |
| (11 + 15) × 5 = 55 + __ 75 | 50 + 44 = 44 + __ 50 |