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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
4.78 × 4 × 0.25 = 8 × 0.125 × 4.8 = 0.7 × 4 =
7.0 × 39 = 0.5 × 3.6 × 2 = (1.7 + 2.0) × 0.6 =
4.3 × 3.5 = (1.4 + 0.3) × 3.0 = 0.125 × 4.8 × 8 =
6.89 × 1.2 ≈ (保留两位小数) 0.68 × 3.82 ≈ (保留两位小数) (4.2 + 2.2) × 1.5 =
8.3 × 27 = 0.8 × 4.77 ≈ (保留两位小数) (2.5 + 1.1) × 3.3 =
6.81 × 9.88 ≈ (保留两位小数) (0.5 + 3.6) × 3.0 = 8 × 3.2 × 1.25 =
(4.3 + 2.3) × 0.6 = (3.0 + 2.5) × 0.6 = 3.9 × 6.4 =
3.8 × 34 = 7.5 × 6.9 = (4.0 + 4.6) × 1.0 =
3.6 × 11 = 5.8 × 0.5 × 2 = 6.9 × 9.3 =
(3.7 + 4.4) × 4.4 = (3.6 + 4.6) × 3.6 = 8.0 × 2.6 =
9.9 × 37 = 1.74 × 2.7 ≈ (保留两位小数) (4.2 + 4.6) × 4.4 =
4.4 × 4.3 = 2.99 × 5.39 ≈ (保留两位小数) 6.55 × 0.47 ≈ (保留两位小数)
9.18 × 6.98 ≈ (保留两位小数) 0.125 × 6.4 × 8 = 0.25 × 4 × 4.78 =
3.32 × 7.45 ≈ (保留两位小数) 5.2 × 4.1 = 10.0 × 7.7 =
3.39 × 3.99 ≈ (保留两位小数) 3.66 × 1.95 ≈ (保留两位小数) (2.6 + 4.2) × 4.1 =
1.36 × 1.08 ≈ (保留两位小数) 3.61 × 2.98 ≈ (保留两位小数) 7.1 × 5.15 ≈ (保留两位小数)
2.23 × 1.01 ≈ (保留两位小数) (0.6 + 0.9) × 4.6 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
4.78 × 4 × 0.25 = 4.78 8 × 0.125 × 4.8 = 4.8 0.7 × 4 = 2.8
7.0 × 39 = 273 0.5 × 3.6 × 2 = 3.6 (1.7 + 2.0) × 0.6 = 2.22
4.3 × 3.5 = 15.05 (1.4 + 0.3) × 3.0 = 5.1 0.125 × 4.8 × 8 = 4.8
6.89 × 1.2 ≈ (保留两位小数) 8.27 0.68 × 3.82 ≈ (保留两位小数) 2.60 (4.2 + 2.2) × 1.5 = 9.6
8.3 × 27 = 224.1 0.8 × 4.77 ≈ (保留两位小数) 3.82 (2.5 + 1.1) × 3.3 = 11.88
6.81 × 9.88 ≈ (保留两位小数) 67.28 (0.5 + 3.6) × 3.0 = 12.3 8 × 3.2 × 1.25 = 32
(4.3 + 2.3) × 0.6 = 3.96 (3.0 + 2.5) × 0.6 = 3.3 3.9 × 6.4 = 24.96
3.8 × 34 = 129.2 7.5 × 6.9 = 51.75 (4.0 + 4.6) × 1.0 = 8.6
3.6 × 11 = 39.6 5.8 × 0.5 × 2 = 5.8 6.9 × 9.3 = 64.17
(3.7 + 4.4) × 4.4 = 35.64 (3.6 + 4.6) × 3.6 = 29.52 8.0 × 2.6 = 20.8
9.9 × 37 = 366.3 1.74 × 2.7 ≈ (保留两位小数) 4.70 (4.2 + 4.6) × 4.4 = 38.72
4.4 × 4.3 = 18.92 2.99 × 5.39 ≈ (保留两位小数) 16.12 6.55 × 0.47 ≈ (保留两位小数) 3.08
9.18 × 6.98 ≈ (保留两位小数) 64.08 0.125 × 6.4 × 8 = 6.4 0.25 × 4 × 4.78 = 4.78
3.32 × 7.45 ≈ (保留两位小数) 24.73 5.2 × 4.1 = 21.32 10.0 × 7.7 = 77
3.39 × 3.99 ≈ (保留两位小数) 13.53 3.66 × 1.95 ≈ (保留两位小数) 7.14 (2.6 + 4.2) × 4.1 = 27.88
1.36 × 1.08 ≈ (保留两位小数) 1.47 3.61 × 2.98 ≈ (保留两位小数) 10.76 7.1 × 5.15 ≈ (保留两位小数) 36.56
2.23 × 1.01 ≈ (保留两位小数) 2.25 (0.6 + 0.9) × 4.6 = 6.9