五年级上册 小数乘法(笔算)
姓名:_______________
学号:_______________
用时:_______________
| 1.6 × 2.5 × 4 = | (4.6 + 4.0) × 1.9 = | (1.6 + 4.4) × 4.7 = |
| 9.9 × 4.0 = | (3.5 + 3.5) × 4.5 = | 0.64 × 7.3 ≈ (保留两位小数) |
| 3.6 × 4 × 2.5 = | 5.8 × 9.82 ≈ (保留两位小数) | 2.8 × 7.6 = |
| 6.0 × 8.5 = | (5.0 + 3.2) × 2.4 = | 4 × 0.25 × 8.4 = |
| (3.2 + 3.4) × 4.5 = | 8.0 × 9.5 = | 4.6 × 2.3 = |
| 1.71 × 2.16 ≈ (保留两位小数) | 0.2 × 5 × 4.5 = | 9.6 × 2.7 = |
| 1.4 × 7.2 = | 0.2 × 5 × 4.5 = | 1.1 × 3.1 = |
| 8.61 × 4.76 ≈ (保留两位小数) | 9.7 × 7.4 = | 9.75 × 2.97 ≈ (保留两位小数) |
| 0.25 × 8.4 × 4 = | 0.125 × 4.8 × 8 = | 0.5 × 5.8 × 2 = |
| 8 × 1.25 × 7.2 = | (0.5 + 2.1) × 1.0 = | (4.1 + 1.0) × 2.2 = |
| 3.9 × 38 = | 4.3 × 4.1 = | 8 × 6.4 × 0.125 = |
| 4.78 × 0.25 × 4 = | 0.2 × 5 × 4.5 = | (2.0 + 0.2) × 3.2 = |
| 2.5 × 42 = | 2.5 × 4 × 1.6 = | 6.3 × 2 = |
| 6.29 × 4.67 ≈ (保留两位小数) | 3.6 × 4 × 2.5 = | 2.6 × 45 = |
| 9.3 × 9.3 = | (3.8 + 3.7) × 3.9 = | 8 × 1.25 × 3.2 = |
| (0.3 + 4.7) × 2.0 = | 10.0 × 9 = | 3.54 × 6.86 ≈ (保留两位小数) |
| 0.2 × 3.5 × 5 = | 6.4 × 8 × 1.25 = |
五年级上册 小数乘法(笔算)(答案)
姓名:_______________
学号:_______________
用时:_______________
| 1.6 × 2.5 × 4 = 16 | (4.6 + 4.0) × 1.9 = 16.34 | (1.6 + 4.4) × 4.7 = 28.2 |
| 9.9 × 4.0 = 39.6 | (3.5 + 3.5) × 4.5 = 31.5 | 0.64 × 7.3 ≈ (保留两位小数) 4.67 |
| 3.6 × 4 × 2.5 = 36 | 5.8 × 9.82 ≈ (保留两位小数) 56.96 | 2.8 × 7.6 = 21.28 |
| 6.0 × 8.5 = 51 | (5.0 + 3.2) × 2.4 = 19.68 | 4 × 0.25 × 8.4 = 8.4 |
| (3.2 + 3.4) × 4.5 = 29.7 | 8.0 × 9.5 = 76 | 4.6 × 2.3 = 10.58 |
| 1.71 × 2.16 ≈ (保留两位小数) 3.69 | 0.2 × 5 × 4.5 = 4.5 | 9.6 × 2.7 = 25.92 |
| 1.4 × 7.2 = 10.08 | 0.2 × 5 × 4.5 = 4.5 | 1.1 × 3.1 = 3.41 |
| 8.61 × 4.76 ≈ (保留两位小数) 40.98 | 9.7 × 7.4 = 71.78 | 9.75 × 2.97 ≈ (保留两位小数) 28.96 |
| 0.25 × 8.4 × 4 = 8.4 | 0.125 × 4.8 × 8 = 4.8 | 0.5 × 5.8 × 2 = 5.8 |
| 8 × 1.25 × 7.2 = 72 | (0.5 + 2.1) × 1.0 = 2.6 | (4.1 + 1.0) × 2.2 = 11.22 |
| 3.9 × 38 = 148.2 | 4.3 × 4.1 = 17.63 | 8 × 6.4 × 0.125 = 6.4 |
| 4.78 × 0.25 × 4 = 4.78 | 0.2 × 5 × 4.5 = 4.5 | (2.0 + 0.2) × 3.2 = 7.04 |
| 2.5 × 42 = 105 | 2.5 × 4 × 1.6 = 16 | 6.3 × 2 = 12.6 |
| 6.29 × 4.67 ≈ (保留两位小数) 29.37 | 3.6 × 4 × 2.5 = 36 | 2.6 × 45 = 117 |
| 9.3 × 9.3 = 86.49 | (3.8 + 3.7) × 3.9 = 29.25 | 8 × 1.25 × 3.2 = 32 |
| (0.3 + 4.7) × 2.0 = 10 | 10.0 × 9 = 90 | 3.54 × 6.86 ≈ (保留两位小数) 24.28 |
| 0.2 × 3.5 × 5 = 3.5 | 6.4 × 8 × 1.25 = 64 |