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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
6.36 × 0.58 ≈ (保留两位小数) 0.5 × 40 = 6.6 × 19 =
3.6 × 2 × 0.5 = 0.36 × 3.83 ≈ (保留两位小数) 4.37 × 2.86 ≈ (保留两位小数)
2.2 × 6.9 = (3.7 + 1.1) × 4.2 = 0.26 × 8.09 ≈ (保留两位小数)
(3.5 + 3.1) × 0.2 = 7.45 × 5.05 ≈ (保留两位小数) 9.82 × 8.14 ≈ (保留两位小数)
8 × 3.2 × 1.25 = 5.5 × 3.2 = 7.2 × 1.25 × 8 =
7.77 × 4.35 ≈ (保留两位小数) 2.2 × 4.5 = 8 × 1.25 × 3.2 =
4.6 × 2 × 0.5 = 6.3 × 4.2 = 9.8 × 38 =
10.0 × 9.5 = 8.0 × 7.2 = 6.3 × 2.62 ≈ (保留两位小数)
4.6 × 0.5 × 2 = 0.2 × 3.5 × 5 = (0.9 + 1.7) × 0.5 =
7.4 × 7.8 = 9.7 × 15 = 0.56 × 7.13 ≈ (保留两位小数)
5.8 × 2 × 0.5 = 1.25 × 3.2 × 8 = (1.8 + 2.8) × 0.4 =
(3.5 + 3.3) × 0.3 = (3.2 + 0.7) × 4.7 = 2.2 × 9 =
0.8 × 4.6 = 7.0 × 1.17 ≈ (保留两位小数) 5.06 × 3.4 ≈ (保留两位小数)
7.6 × 10.0 = 6.7 × 0.6 = 2.65 × 1.97 ≈ (保留两位小数)
5.3 × 39 = 0.25 × 4 × 4.78 = 0.125 × 6.4 × 8 =
(4.0 + 1.5) × 0.4 = 0.5 × 4.7 = 1.2 × 39 =
2.67 × 5.21 ≈ (保留两位小数) 0.5 × 5.8 × 2 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
6.36 × 0.58 ≈ (保留两位小数) 3.69 0.5 × 40 = 20 6.6 × 19 = 125.4
3.6 × 2 × 0.5 = 3.6 0.36 × 3.83 ≈ (保留两位小数) 1.38 4.37 × 2.86 ≈ (保留两位小数) 12.50
2.2 × 6.9 = 15.18 (3.7 + 1.1) × 4.2 = 20.16 0.26 × 8.09 ≈ (保留两位小数) 2.10
(3.5 + 3.1) × 0.2 = 1.32 7.45 × 5.05 ≈ (保留两位小数) 37.62 9.82 × 8.14 ≈ (保留两位小数) 79.93
8 × 3.2 × 1.25 = 32 5.5 × 3.2 = 17.6 7.2 × 1.25 × 8 = 72
7.77 × 4.35 ≈ (保留两位小数) 33.80 2.2 × 4.5 = 9.9 8 × 1.25 × 3.2 = 32
4.6 × 2 × 0.5 = 4.6 6.3 × 4.2 = 26.46 9.8 × 38 = 372.4
10.0 × 9.5 = 95 8.0 × 7.2 = 57.6 6.3 × 2.62 ≈ (保留两位小数) 16.51
4.6 × 0.5 × 2 = 4.6 0.2 × 3.5 × 5 = 3.5 (0.9 + 1.7) × 0.5 = 1.3
7.4 × 7.8 = 57.72 9.7 × 15 = 145.5 0.56 × 7.13 ≈ (保留两位小数) 3.99
5.8 × 2 × 0.5 = 5.8 1.25 × 3.2 × 8 = 32 (1.8 + 2.8) × 0.4 = 1.84
(3.5 + 3.3) × 0.3 = 2.04 (3.2 + 0.7) × 4.7 = 18.33 2.2 × 9 = 19.8
0.8 × 4.6 = 3.68 7.0 × 1.17 ≈ (保留两位小数) 8.19 5.06 × 3.4 ≈ (保留两位小数) 17.20
7.6 × 10.0 = 76 6.7 × 0.6 = 4.02 2.65 × 1.97 ≈ (保留两位小数) 5.22
5.3 × 39 = 206.7 0.25 × 4 × 4.78 = 4.78 0.125 × 6.4 × 8 = 6.4
(4.0 + 1.5) × 0.4 = 2.2 0.5 × 4.7 = 2.35 1.2 × 39 = 46.8
2.67 × 5.21 ≈ (保留两位小数) 13.91 0.5 × 5.8 × 2 = 5.8