五年级上册 小数乘法(笔算)
姓名:_______________
学号:_______________
用时:_______________
| 1.83 × 9.74 ≈ (保留两位小数) | (3.9 + 1.6) × 1.6 = | 6.6 × 3 = |
| 6.68 × 7.02 ≈ (保留两位小数) | 1.25 × 8 × 7.2 = | 5 × 4.5 × 0.2 = |
| (1.8 + 2.7) × 3.8 = | 3.47 × 7.87 ≈ (保留两位小数) | 8 × 0.125 × 4.8 = |
| 3.4 × 7.5 = | 3.5 × 5 × 0.2 = | 1.7 × 7.0 = |
| 7.9 × 1.9 = | 7.5 × 23 = | 6.09 × 8.0 ≈ (保留两位小数) |
| 1.6 × 23 = | (2.4 + 1.7) × 1.3 = | 7.83 × 4.69 ≈ (保留两位小数) |
| (3.4 + 1.3) × 3.4 = | 6.0 × 44 = | 8.6 × 5 = |
| 3.33 × 3.09 ≈ (保留两位小数) | 9.6 × 1.7 = | 6.5 × 8.4 = |
| 1.22 × 8.93 ≈ (保留两位小数) | 8 × 1.25 × 6.4 = | 2.2 × 50 = |
| 0.5 × 3.6 × 2 = | 9.41 × 7.0 ≈ (保留两位小数) | 2.22 × 0.73 ≈ (保留两位小数) |
| 1.6 × 1.3 = | 2.5 × 4 × 1.6 = | (2.5 + 4.5) × 0.4 = |
| 2.5 × 4 × 3.6 = | (2.6 + 3.2) × 2.5 = | 6.3 × 9.2 = |
| 3.0 × 0.2 = | 1.25 × 8 × 6.4 = | 4.34 × 2.91 ≈ (保留两位小数) |
| 4 × 8.4 × 0.25 = | 1.7 × 5 = | 4.4 × 2.7 = |
| (0.9 + 0.9) × 4.4 = | (4.2 + 4.0) × 4.1 = | 5 × 0.2 × 4.5 = |
| 1.71 × 8.06 ≈ (保留两位小数) | (5.0 + 1.9) × 4.5 = | 1.25 × 6.4 × 8 = |
| 1.1 × 25 = | 3.33 × 6.97 ≈ (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:_______________
| 1.83 × 9.74 ≈ (保留两位小数) 17.82 | (3.9 + 1.6) × 1.6 = 8.8 | 6.6 × 3 = 19.8 |
| 6.68 × 7.02 ≈ (保留两位小数) 46.89 | 1.25 × 8 × 7.2 = 72 | 5 × 4.5 × 0.2 = 4.5 |
| (1.8 + 2.7) × 3.8 = 17.1 | 3.47 × 7.87 ≈ (保留两位小数) 27.31 | 8 × 0.125 × 4.8 = 4.8 |
| 3.4 × 7.5 = 25.5 | 3.5 × 5 × 0.2 = 3.5 | 1.7 × 7.0 = 11.9 |
| 7.9 × 1.9 = 15.01 | 7.5 × 23 = 172.5 | 6.09 × 8.0 ≈ (保留两位小数) 48.72 |
| 1.6 × 23 = 36.8 | (2.4 + 1.7) × 1.3 = 5.33 | 7.83 × 4.69 ≈ (保留两位小数) 36.72 |
| (3.4 + 1.3) × 3.4 = 15.98 | 6.0 × 44 = 264 | 8.6 × 5 = 43 |
| 3.33 × 3.09 ≈ (保留两位小数) 10.29 | 9.6 × 1.7 = 16.32 | 6.5 × 8.4 = 54.6 |
| 1.22 × 8.93 ≈ (保留两位小数) 10.89 | 8 × 1.25 × 6.4 = 64 | 2.2 × 50 = 110 |
| 0.5 × 3.6 × 2 = 3.6 | 9.41 × 7.0 ≈ (保留两位小数) 65.87 | 2.22 × 0.73 ≈ (保留两位小数) 1.62 |
| 1.6 × 1.3 = 2.08 | 2.5 × 4 × 1.6 = 16 | (2.5 + 4.5) × 0.4 = 2.8 |
| 2.5 × 4 × 3.6 = 36 | (2.6 + 3.2) × 2.5 = 14.5 | 6.3 × 9.2 = 57.96 |
| 3.0 × 0.2 = 0.6 | 1.25 × 8 × 6.4 = 64 | 4.34 × 2.91 ≈ (保留两位小数) 12.63 |
| 4 × 8.4 × 0.25 = 8.4 | 1.7 × 5 = 8.5 | 4.4 × 2.7 = 11.88 |
| (0.9 + 0.9) × 4.4 = 7.92 | (4.2 + 4.0) × 4.1 = 33.62 | 5 × 0.2 × 4.5 = 4.5 |
| 1.71 × 8.06 ≈ (保留两位小数) 13.78 | (5.0 + 1.9) × 4.5 = 31.05 | 1.25 × 6.4 × 8 = 64 |
| 1.1 × 25 = 27.5 | 3.33 × 6.97 ≈ (保留两位小数) 23.21 |