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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
5 × 3.5 × 0.2 = (2.4 + 0.3) × 1.1 = 4.54 × 3.31 ≈ (保留两位小数)
1.1 × 9.8 = 6.8 × 21 = 2.0 × 3 =
0.5 × 3.6 × 2 = 1.51 × 5.08 ≈ (保留两位小数) 5.19 × 3.0 ≈ (保留两位小数)
4.7 × 7.09 ≈ (保留两位小数) 1.2 × 7.2 = 0.125 × 8 × 6.4 =
(0.7 + 2.8) × 3.8 = 0.6 × 4.3 = 8.4 × 1.2 =
3.6 × 2.5 × 4 = 3.6 × 2.5 × 4 = 8 × 4.8 × 0.125 =
4.78 × 4 × 0.25 = 3.2 × 6.1 = (2.9 + 3.6) × 1.5 =
4 × 0.25 × 6.8 = (1.6 + 1.4) × 4.8 = 5.6 × 9 =
3.6 × 2.5 × 4 = 6.8 × 0.9 = 7.4 × 40 =
5 × 0.2 × 3.5 = (2.7 + 3.5) × 2.8 = 1.05 × 9.23 ≈ (保留两位小数)
2.69 × 3.03 ≈ (保留两位小数) 2.4 × 9.4 = (0.3 + 0.1) × 3.1 =
7.32 × 1.14 ≈ (保留两位小数) 1.25 × 8 × 3.2 = 2 × 4.6 × 0.5 =
5.0 × 11 = 4.97 × 9.8 ≈ (保留两位小数) 0.8 × 4.0 =
8.9 × 5 = 9.61 × 2.67 ≈ (保留两位小数) 7.58 × 6.85 ≈ (保留两位小数)
4.82 × 1.67 ≈ (保留两位小数) 7.8 × 6.52 ≈ (保留两位小数) 4.0 × 2.0 =
8 × 1.25 × 7.2 = 1.92 × 4.94 ≈ (保留两位小数) 1.6 × 4 × 2.5 =
0.4 × 14 = 1.4 × 18 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
5 × 3.5 × 0.2 = 3.5 (2.4 + 0.3) × 1.1 = 2.97 4.54 × 3.31 ≈ (保留两位小数) 15.03
1.1 × 9.8 = 10.78 6.8 × 21 = 142.8 2.0 × 3 = 6
0.5 × 3.6 × 2 = 3.6 1.51 × 5.08 ≈ (保留两位小数) 7.67 5.19 × 3.0 ≈ (保留两位小数) 15.57
4.7 × 7.09 ≈ (保留两位小数) 33.32 1.2 × 7.2 = 8.64 0.125 × 8 × 6.4 = 6.4
(0.7 + 2.8) × 3.8 = 13.3 0.6 × 4.3 = 2.58 8.4 × 1.2 = 10.08
3.6 × 2.5 × 4 = 36 3.6 × 2.5 × 4 = 36 8 × 4.8 × 0.125 = 4.8
4.78 × 4 × 0.25 = 4.78 3.2 × 6.1 = 19.52 (2.9 + 3.6) × 1.5 = 9.75
4 × 0.25 × 6.8 = 6.8 (1.6 + 1.4) × 4.8 = 14.4 5.6 × 9 = 50.4
3.6 × 2.5 × 4 = 36 6.8 × 0.9 = 6.12 7.4 × 40 = 296
5 × 0.2 × 3.5 = 3.5 (2.7 + 3.5) × 2.8 = 17.36 1.05 × 9.23 ≈ (保留两位小数) 9.69
2.69 × 3.03 ≈ (保留两位小数) 8.15 2.4 × 9.4 = 22.56 (0.3 + 0.1) × 3.1 = 1.24
7.32 × 1.14 ≈ (保留两位小数) 8.34 1.25 × 8 × 3.2 = 32 2 × 4.6 × 0.5 = 4.6
5.0 × 11 = 55 4.97 × 9.8 ≈ (保留两位小数) 48.71 0.8 × 4.0 = 3.2
8.9 × 5 = 44.5 9.61 × 2.67 ≈ (保留两位小数) 25.66 7.58 × 6.85 ≈ (保留两位小数) 51.92
4.82 × 1.67 ≈ (保留两位小数) 8.05 7.8 × 6.52 ≈ (保留两位小数) 50.86 4.0 × 2.0 = 8
8 × 1.25 × 7.2 = 72 1.92 × 4.94 ≈ (保留两位小数) 9.48 1.6 × 4 × 2.5 = 16
0.4 × 14 = 5.6 1.4 × 18 = 25.2