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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
3.5 × 5 × 0.2 = 5.9 × 3.8 = (2.0 + 2.4) × 3.2 =
(1.8 + 3.4) × 2.5 = 2.2 × 0.2 = 1.57 × 4.68 ≈ (保留两位小数)
4.6 × 9.7 = 6.26 × 3.79 ≈ (保留两位小数) 2.28 × 8.37 ≈ (保留两位小数)
7.1 × 3.0 = 4.35 × 9.62 ≈ (保留两位小数) (2.5 + 4.7) × 0.2 =
3.6 × 2 × 0.5 = 9.4 × 22 = 5.54 × 0.87 ≈ (保留两位小数)
(3.7 + 3.7) × 2.8 = (4.7 + 0.9) × 2.1 = 0.2 × 2 =
8 × 6.4 × 0.125 = (4.7 + 4.4) × 4.1 = 7.3 × 28 =
2.56 × 6.74 ≈ (保留两位小数) (0.4 + 2.0) × 0.2 = 4.0 × 1.0 =
9.5 × 9.42 ≈ (保留两位小数) (4.5 + 4.4) × 2.2 = 9.22 × 9.2 ≈ (保留两位小数)
0.5 × 2 × 5.8 = 9.5 × 8.4 = 8.9 × 2.9 =
9.6 × 1.9 = (2.2 + 1.3) × 0.8 = 5.2 × 27 =
(3.6 + 2.2) × 2.7 = 2.45 × 1.67 ≈ (保留两位小数) (0.7 + 3.3) × 2.1 =
4.69 × 9.81 ≈ (保留两位小数) (2.2 + 1.7) × 3.5 = 2 × 5.8 × 0.5 =
(4.9 + 2.6) × 1.5 = 5.9 × 30 = 6.39 × 3.19 ≈ (保留两位小数)
1.6 × 2.5 × 4 = 8.6 × 6.1 = 3.6 × 0.5 × 2 =
7.8 × 45 = 5.56 × 7.55 ≈ (保留两位小数) 0.125 × 8 × 4.8 =
1.6 × 4 × 2.5 = (0.4 + 4.6) × 4.5 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
3.5 × 5 × 0.2 = 3.5 5.9 × 3.8 = 22.42 (2.0 + 2.4) × 3.2 = 14.08
(1.8 + 3.4) × 2.5 = 13 2.2 × 0.2 = 0.44 1.57 × 4.68 ≈ (保留两位小数) 7.35
4.6 × 9.7 = 44.62 6.26 × 3.79 ≈ (保留两位小数) 23.73 2.28 × 8.37 ≈ (保留两位小数) 19.08
7.1 × 3.0 = 21.3 4.35 × 9.62 ≈ (保留两位小数) 41.85 (2.5 + 4.7) × 0.2 = 1.44
3.6 × 2 × 0.5 = 3.6 9.4 × 22 = 206.8 5.54 × 0.87 ≈ (保留两位小数) 4.82
(3.7 + 3.7) × 2.8 = 20.72 (4.7 + 0.9) × 2.1 = 11.76 0.2 × 2 = 0.4
8 × 6.4 × 0.125 = 6.4 (4.7 + 4.4) × 4.1 = 37.31 7.3 × 28 = 204.4
2.56 × 6.74 ≈ (保留两位小数) 17.25 (0.4 + 2.0) × 0.2 = 0.48 4.0 × 1.0 = 4
9.5 × 9.42 ≈ (保留两位小数) 89.49 (4.5 + 4.4) × 2.2 = 19.58 9.22 × 9.2 ≈ (保留两位小数) 84.82
0.5 × 2 × 5.8 = 5.8 9.5 × 8.4 = 79.8 8.9 × 2.9 = 25.81
9.6 × 1.9 = 18.24 (2.2 + 1.3) × 0.8 = 2.8 5.2 × 27 = 140.4
(3.6 + 2.2) × 2.7 = 15.66 2.45 × 1.67 ≈ (保留两位小数) 4.09 (0.7 + 3.3) × 2.1 = 8.4
4.69 × 9.81 ≈ (保留两位小数) 46.01 (2.2 + 1.7) × 3.5 = 13.65 2 × 5.8 × 0.5 = 5.8
(4.9 + 2.6) × 1.5 = 11.25 5.9 × 30 = 177 6.39 × 3.19 ≈ (保留两位小数) 20.38
1.6 × 2.5 × 4 = 16 8.6 × 6.1 = 52.46 3.6 × 0.5 × 2 = 3.6
7.8 × 45 = 351 5.56 × 7.55 ≈ (保留两位小数) 41.98 0.125 × 8 × 4.8 = 4.8
1.6 × 4 × 2.5 = 16 (0.4 + 4.6) × 4.5 = 22.5