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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
6.7 × 6.9 = 9.79 × 1.66 ≈ (保留两位小数) 3.77 × 9.2 ≈ (保留两位小数)
(3.0 + 4.4) × 2.8 = 6.5 × 6 = 8.5 × 7.0 =
0.25 × 8.4 × 4 = 0.25 × 8.4 × 4 = (2.6 + 2.0) × 3.8 =
0.23 × 9.49 ≈ (保留两位小数) 7.6 × 3.6 = 1.25 × 3.2 × 8 =
9.22 × 1.21 ≈ (保留两位小数) 6.57 × 7.25 ≈ (保留两位小数) 5.6 × 37 =
(0.9 + 1.8) × 3.4 = 3.5 × 5 × 0.2 = 7.8 × 5 =
4.0 × 5.49 ≈ (保留两位小数) 0.2 × 7.76 ≈ (保留两位小数) 3.2 × 8 × 1.25 =
9.7 × 39 = (0.4 + 1.6) × 0.6 = (0.8 + 0.3) × 4.6 =
6.4 × 11 = 7.4 × 11 = 2.3 × 7.2 =
0.5 × 11 = 7.87 × 9.71 ≈ (保留两位小数) 8.79 × 3.2 ≈ (保留两位小数)
6.7 × 9.4 = 5 × 0.2 × 3.5 = 0.5 × 3.6 × 2 =
3.08 × 0.83 ≈ (保留两位小数) (2.2 + 4.3) × 0.9 = (1.1 + 1.2) × 0.9 =
6.54 × 1.79 ≈ (保留两位小数) 6.4 × 8 × 1.25 = 8 × 7.2 × 1.25 =
3.7 × 5.5 = 7.97 × 8.18 ≈ (保留两位小数) (2.9 + 2.0) × 1.5 =
6.4 × 0.125 × 8 = 5.9 × 49 = 8.8 × 2.9 =
4.8 × 8 × 0.125 = 0.5 × 3.6 × 2 = 4.99 × 3.61 ≈ (保留两位小数)
0.25 × 8.4 × 4 = 6.0 × 4.1 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
6.7 × 6.9 = 46.23 9.79 × 1.66 ≈ (保留两位小数) 16.25 3.77 × 9.2 ≈ (保留两位小数) 34.68
(3.0 + 4.4) × 2.8 = 20.72 6.5 × 6 = 39 8.5 × 7.0 = 59.5
0.25 × 8.4 × 4 = 8.4 0.25 × 8.4 × 4 = 8.4 (2.6 + 2.0) × 3.8 = 17.48
0.23 × 9.49 ≈ (保留两位小数) 2.18 7.6 × 3.6 = 27.36 1.25 × 3.2 × 8 = 32
9.22 × 1.21 ≈ (保留两位小数) 11.16 6.57 × 7.25 ≈ (保留两位小数) 47.63 5.6 × 37 = 207.2
(0.9 + 1.8) × 3.4 = 9.18 3.5 × 5 × 0.2 = 3.5 7.8 × 5 = 39
4.0 × 5.49 ≈ (保留两位小数) 21.96 0.2 × 7.76 ≈ (保留两位小数) 1.55 3.2 × 8 × 1.25 = 32
9.7 × 39 = 378.3 (0.4 + 1.6) × 0.6 = 1.2 (0.8 + 0.3) × 4.6 = 5.06
6.4 × 11 = 70.4 7.4 × 11 = 81.4 2.3 × 7.2 = 16.56
0.5 × 11 = 5.5 7.87 × 9.71 ≈ (保留两位小数) 76.42 8.79 × 3.2 ≈ (保留两位小数) 28.13
6.7 × 9.4 = 62.98 5 × 0.2 × 3.5 = 3.5 0.5 × 3.6 × 2 = 3.6
3.08 × 0.83 ≈ (保留两位小数) 2.56 (2.2 + 4.3) × 0.9 = 5.85 (1.1 + 1.2) × 0.9 = 2.07
6.54 × 1.79 ≈ (保留两位小数) 11.71 6.4 × 8 × 1.25 = 64 8 × 7.2 × 1.25 = 72
3.7 × 5.5 = 20.35 7.97 × 8.18 ≈ (保留两位小数) 65.19 (2.9 + 2.0) × 1.5 = 7.35
6.4 × 0.125 × 8 = 6.4 5.9 × 49 = 289.1 8.8 × 2.9 = 25.52
4.8 × 8 × 0.125 = 4.8 0.5 × 3.6 × 2 = 3.6 4.99 × 3.61 ≈ (保留两位小数) 18.01
0.25 × 8.4 × 4 = 8.4 6.0 × 4.1 = 24.6