五年级上册 小数乘法(笔算)
姓名:_______________
学号:_______________
用时:_______________
| 0.25 × 4.78 × 4 = | 9.0 × 1.4 = | 1.55 × 1.45 ≈ (保留两位小数) |
| 0.7 × 46 = | (4.4 + 1.8) × 1.4 = | 2.5 × 1.6 × 4 = |
| 0.8 × 5.9 = | (0.5 + 1.0) × 4.0 = | (2.2 + 3.7) × 0.4 = |
| 0.55 × 6.63 ≈ (保留两位小数) | 0.3 × 7.4 = | 8.73 × 7.64 ≈ (保留两位小数) |
| 9.9 × 7.1 = | 2.4 × 6.0 = | 0.4 × 0.84 ≈ (保留两位小数) |
| 8.2 × 2.0 = | (4.1 + 3.9) × 2.5 = | 3.46 × 9.64 ≈ (保留两位小数) |
| (1.2 + 3.7) × 2.4 = | (0.7 + 0.7) × 1.6 = | 6.6 × 13 = |
| 0.9 × 9.2 = | 8.48 × 8.05 ≈ (保留两位小数) | 2.4 × 6 = |
| 2 × 5.8 × 0.5 = | 6.1 × 35 = | 4 × 2.5 × 1.6 = |
| 2.0 × 11 = | 0.8 × 16 = | 1.8 × 23 = |
| 6.7 × 29 = | (4.6 + 1.3) × 4.1 = | 0.27 × 2.42 ≈ (保留两位小数) |
| 9.3 × 7.7 = | 0.66 × 9.75 ≈ (保留两位小数) | 8.0 × 3.9 = |
| 6.4 × 1.25 × 8 = | 5.1 × 42 = | 5.5 × 8.9 = |
| 0.4 × 6.0 = | 3.3 × 8.3 = | (0.6 + 2.6) × 4.4 = |
| 9.26 × 9.21 ≈ (保留两位小数) | (3.8 + 1.2) × 4.5 = | 2.6 × 5.7 = |
| (0.4 + 2.7) × 2.6 = | 4 × 1.6 × 2.5 = | 3.2 × 8 × 1.25 = |
| 6.9 × 7.0 = | 2.67 × 9.97 ≈ (保留两位小数) |
五年级上册 小数乘法(笔算)(答案)
姓名:_______________
学号:_______________
用时:_______________
| 0.25 × 4.78 × 4 = 4.78 | 9.0 × 1.4 = 12.6 | 1.55 × 1.45 ≈ (保留两位小数) 2.25 |
| 0.7 × 46 = 32.2 | (4.4 + 1.8) × 1.4 = 8.68 | 2.5 × 1.6 × 4 = 16 |
| 0.8 × 5.9 = 4.72 | (0.5 + 1.0) × 4.0 = 6 | (2.2 + 3.7) × 0.4 = 2.36 |
| 0.55 × 6.63 ≈ (保留两位小数) 3.65 | 0.3 × 7.4 = 2.22 | 8.73 × 7.64 ≈ (保留两位小数) 66.70 |
| 9.9 × 7.1 = 70.29 | 2.4 × 6.0 = 14.4 | 0.4 × 0.84 ≈ (保留两位小数) 0.34 |
| 8.2 × 2.0 = 16.4 | (4.1 + 3.9) × 2.5 = 20 | 3.46 × 9.64 ≈ (保留两位小数) 33.35 |
| (1.2 + 3.7) × 2.4 = 11.76 | (0.7 + 0.7) × 1.6 = 2.24 | 6.6 × 13 = 85.8 |
| 0.9 × 9.2 = 8.28 | 8.48 × 8.05 ≈ (保留两位小数) 68.26 | 2.4 × 6 = 14.4 |
| 2 × 5.8 × 0.5 = 5.8 | 6.1 × 35 = 213.5 | 4 × 2.5 × 1.6 = 16 |
| 2.0 × 11 = 22 | 0.8 × 16 = 12.8 | 1.8 × 23 = 41.4 |
| 6.7 × 29 = 194.3 | (4.6 + 1.3) × 4.1 = 24.19 | 0.27 × 2.42 ≈ (保留两位小数) 0.65 |
| 9.3 × 7.7 = 71.61 | 0.66 × 9.75 ≈ (保留两位小数) 6.44 | 8.0 × 3.9 = 31.2 |
| 6.4 × 1.25 × 8 = 64 | 5.1 × 42 = 214.2 | 5.5 × 8.9 = 48.95 |
| 0.4 × 6.0 = 2.4 | 3.3 × 8.3 = 27.39 | (0.6 + 2.6) × 4.4 = 14.08 |
| 9.26 × 9.21 ≈ (保留两位小数) 85.28 | (3.8 + 1.2) × 4.5 = 22.5 | 2.6 × 5.7 = 14.82 |
| (0.4 + 2.7) × 2.6 = 8.06 | 4 × 1.6 × 2.5 = 16 | 3.2 × 8 × 1.25 = 32 |
| 6.9 × 7.0 = 48.3 | 2.67 × 9.97 ≈ (保留两位小数) 26.62 |