五年级上册 小数乘法(笔算)
姓名:_______________
学号:_______________
用时:_______________
| 6.47 × 1.39 ≈ (保留两位小数) | (4.6 + 4.1) × 2.8 = | 2.5 × 9.7 = |
| 4.9 × 1.2 = | 0.25 × 8.4 × 4 = | 2.9 × 45 = |
| 0.3 × 19 = | 8.3 × 24 = | 1.25 × 8 × 6.4 = |
| 2.8 × 1.4 = | (1.4 + 0.8) × 2.5 = | (1.3 + 1.9) × 1.5 = |
| 7.2 × 1.25 × 8 = | 5.2 × 5.8 = | 4.8 × 8 × 0.125 = |
| (5.0 + 4.0) × 3.7 = | 1.34 × 6.3 ≈ (保留两位小数) | 3.75 × 8.08 ≈ (保留两位小数) |
| (0.4 + 1.5) × 2.5 = | 5.7 × 14 = | 3.8 × 9.9 = |
| (3.0 + 0.7) × 3.5 = | 3.0 × 2.3 = | 4.51 × 9.91 ≈ (保留两位小数) |
| 1.25 × 8 × 3.2 = | 3.3 × 13 = | 9.88 × 2.1 ≈ (保留两位小数) |
| 5.8 × 0.5 × 2 = | 9.6 × 7 = | 3.2 × 22 = |
| 6.4 × 50 = | 8.7 × 27 = | 5.6 × 3 = |
| 2.23 × 3.15 ≈ (保留两位小数) | 7.1 × 2.8 = | 0.35 × 6.2 ≈ (保留两位小数) |
| 1.5 × 7.5 = | 0.5 × 6.9 = | 2.9 × 11 = |
| 6.4 × 1.25 × 8 = | 1.6 × 4 × 2.5 = | 0.25 × 8.4 × 4 = |
| 8.7 × 18 = | (1.4 + 2.9) × 1.5 = | 5.0 × 12 = |
| 6.4 × 8 × 0.125 = | 4 × 4.78 × 0.25 = | 5.5 × 4 = |
| (1.6 + 0.9) × 3.2 = | (0.5 + 4.3) × 2.0 = |
五年级上册 小数乘法(笔算)(答案)
姓名:_______________
学号:_______________
用时:_______________
| 6.47 × 1.39 ≈ (保留两位小数) 8.99 | (4.6 + 4.1) × 2.8 = 24.36 | 2.5 × 9.7 = 24.25 |
| 4.9 × 1.2 = 5.88 | 0.25 × 8.4 × 4 = 8.4 | 2.9 × 45 = 130.5 |
| 0.3 × 19 = 5.7 | 8.3 × 24 = 199.2 | 1.25 × 8 × 6.4 = 64 |
| 2.8 × 1.4 = 3.92 | (1.4 + 0.8) × 2.5 = 5.5 | (1.3 + 1.9) × 1.5 = 4.8 |
| 7.2 × 1.25 × 8 = 72 | 5.2 × 5.8 = 30.16 | 4.8 × 8 × 0.125 = 4.8 |
| (5.0 + 4.0) × 3.7 = 33.3 | 1.34 × 6.3 ≈ (保留两位小数) 8.44 | 3.75 × 8.08 ≈ (保留两位小数) 30.30 |
| (0.4 + 1.5) × 2.5 = 4.75 | 5.7 × 14 = 79.8 | 3.8 × 9.9 = 37.62 |
| (3.0 + 0.7) × 3.5 = 12.95 | 3.0 × 2.3 = 6.9 | 4.51 × 9.91 ≈ (保留两位小数) 44.69 |
| 1.25 × 8 × 3.2 = 32 | 3.3 × 13 = 42.9 | 9.88 × 2.1 ≈ (保留两位小数) 20.75 |
| 5.8 × 0.5 × 2 = 5.8 | 9.6 × 7 = 67.2 | 3.2 × 22 = 70.4 |
| 6.4 × 50 = 320 | 8.7 × 27 = 234.9 | 5.6 × 3 = 16.8 |
| 2.23 × 3.15 ≈ (保留两位小数) 7.02 | 7.1 × 2.8 = 19.88 | 0.35 × 6.2 ≈ (保留两位小数) 2.17 |
| 1.5 × 7.5 = 11.25 | 0.5 × 6.9 = 3.45 | 2.9 × 11 = 31.9 |
| 6.4 × 1.25 × 8 = 64 | 1.6 × 4 × 2.5 = 16 | 0.25 × 8.4 × 4 = 8.4 |
| 8.7 × 18 = 156.6 | (1.4 + 2.9) × 1.5 = 6.45 | 5.0 × 12 = 60 |
| 6.4 × 8 × 0.125 = 6.4 | 4 × 4.78 × 0.25 = 4.78 | 5.5 × 4 = 22 |
| (1.6 + 0.9) × 3.2 = 8 | (0.5 + 4.3) × 2.0 = 9.6 |