五年级上册 小数乘法(笔算)
姓名:_______________
学号:_______________
用时:_______________
| 1.2 × 0.1 = | 4 × 6.8 × 0.25 = | (2.5 + 3.1) × 3.9 = |
| 2.5 × 4.5 = | 0.4 × 2.0 = | 7.3 × 9.9 = |
| 9.7 × 4.0 = | 9.3 × 35 = | 6.34 × 3.3 ≈ (保留两位小数) |
| (4.3 + 3.6) × 1.6 = | 1.6 × 2.5 × 4 = | 9.5 × 6.76 ≈ (保留两位小数) |
| 2 × 4.6 × 0.5 = | (0.8 + 4.6) × 4.1 = | 8.5 × 4.6 = |
| (2.3 + 0.7) × 0.2 = | (2.6 + 1.2) × 4.9 = | 3.95 × 8.71 ≈ (保留两位小数) |
| 8.14 × 4.2 ≈ (保留两位小数) | 6.2 × 5.3 = | (0.8 + 1.0) × 1.7 = |
| 0.25 × 8.4 × 4 = | 0.2 × 3.5 × 5 = | 2.4 × 43 = |
| 4 × 2.5 × 3.6 = | 9.0 × 43 = | 8.0 × 43 = |
| 2.9 × 5.5 = | 3.3 × 4.47 ≈ (保留两位小数) | 1.7 × 7.2 = |
| (3.5 + 0.4) × 3.5 = | (5.0 + 2.1) × 1.3 = | 9.1 × 28 = |
| 5.8 × 2 × 0.5 = | (4.0 + 4.0) × 2.2 = | 1.3 × 10.0 = |
| 8.4 × 4 × 0.25 = | 0.2 × 3.5 × 5 = | (2.8 + 1.3) × 1.8 = |
| (4.7 + 0.7) × 1.2 = | 1.34 × 5.3 ≈ (保留两位小数) | 3.6 × 0.5 × 2 = |
| (0.7 + 2.0) × 2.6 = | 9.19 × 1.98 ≈ (保留两位小数) | (2.0 + 2.6) × 4.0 = |
| 3.37 × 4.51 ≈ (保留两位小数) | 9.04 × 10.0 ≈ (保留两位小数) | 0.5 × 5.8 × 2 = |
| 3.6 × 4 × 2.5 = | 2.93 × 7.48 ≈ (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:_______________
| 1.2 × 0.1 = 0.12 | 4 × 6.8 × 0.25 = 6.8 | (2.5 + 3.1) × 3.9 = 21.84 |
| 2.5 × 4.5 = 11.25 | 0.4 × 2.0 = 0.8 | 7.3 × 9.9 = 72.27 |
| 9.7 × 4.0 = 38.8 | 9.3 × 35 = 325.5 | 6.34 × 3.3 ≈ (保留两位小数) 20.92 |
| (4.3 + 3.6) × 1.6 = 12.64 | 1.6 × 2.5 × 4 = 16 | 9.5 × 6.76 ≈ (保留两位小数) 64.22 |
| 2 × 4.6 × 0.5 = 4.6 | (0.8 + 4.6) × 4.1 = 22.14 | 8.5 × 4.6 = 39.1 |
| (2.3 + 0.7) × 0.2 = 0.6 | (2.6 + 1.2) × 4.9 = 18.62 | 3.95 × 8.71 ≈ (保留两位小数) 34.40 |
| 8.14 × 4.2 ≈ (保留两位小数) 34.19 | 6.2 × 5.3 = 32.86 | (0.8 + 1.0) × 1.7 = 3.06 |
| 0.25 × 8.4 × 4 = 8.4 | 0.2 × 3.5 × 5 = 3.5 | 2.4 × 43 = 103.2 |
| 4 × 2.5 × 3.6 = 36 | 9.0 × 43 = 387 | 8.0 × 43 = 344 |
| 2.9 × 5.5 = 15.95 | 3.3 × 4.47 ≈ (保留两位小数) 14.75 | 1.7 × 7.2 = 12.24 |
| (3.5 + 0.4) × 3.5 = 13.65 | (5.0 + 2.1) × 1.3 = 9.23 | 9.1 × 28 = 254.8 |
| 5.8 × 2 × 0.5 = 5.8 | (4.0 + 4.0) × 2.2 = 17.6 | 1.3 × 10.0 = 13 |
| 8.4 × 4 × 0.25 = 8.4 | 0.2 × 3.5 × 5 = 3.5 | (2.8 + 1.3) × 1.8 = 7.38 |
| (4.7 + 0.7) × 1.2 = 6.48 | 1.34 × 5.3 ≈ (保留两位小数) 7.10 | 3.6 × 0.5 × 2 = 3.6 |
| (0.7 + 2.0) × 2.6 = 7.02 | 9.19 × 1.98 ≈ (保留两位小数) 18.20 | (2.0 + 2.6) × 4.0 = 18.4 |
| 3.37 × 4.51 ≈ (保留两位小数) 15.20 | 9.04 × 10.0 ≈ (保留两位小数) 90.40 | 0.5 × 5.8 × 2 = 5.8 |
| 3.6 × 4 × 2.5 = 36 | 2.93 × 7.48 ≈ (保留两位小数) 21.92 |