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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
7.41 × 0.32 ≈ (保留两位小数) 8 × 6.4 × 1.25 = 9.37 × 9.65 ≈ (保留两位小数)
0.5 × 4.6 × 2 = 5.9 × 29 = 2.4 × 6.3 =
9.4 × 34 = (2.4 + 4.9) × 4.9 = 4.69 × 0.27 ≈ (保留两位小数)
1.34 × 6.98 ≈ (保留两位小数) 2.9 × 3.9 = 8.04 × 1.97 ≈ (保留两位小数)
(1.7 + 2.4) × 3.9 = 6.4 × 8 × 1.25 = (2.3 + 0.5) × 1.1 =
(2.7 + 3.4) × 0.6 = 4.78 × 4 × 0.25 = 0.23 × 5.87 ≈ (保留两位小数)
7.9 × 1.8 = 7.9 × 8.7 = 7.3 × 38 =
4.4 × 5.2 = 8.03 × 4.77 ≈ (保留两位小数) (2.2 + 0.7) × 2.2 =
2.4 × 2.3 = 0.5 × 2 × 4.6 = (4.6 + 4.0) × 4.0 =
(2.6 + 1.9) × 2.4 = 4 × 2.5 × 1.6 = (5.0 + 2.7) × 3.0 =
8.0 × 4.8 = 4.6 × 0.5 × 2 = (3.6 + 1.3) × 2.6 =
9.2 × 6.2 = (1.9 + 1.8) × 1.0 = 9.89 × 5.51 ≈ (保留两位小数)
(0.3 + 2.7) × 4.0 = 6.4 × 6.7 = 7.1 × 8.83 ≈ (保留两位小数)
4.8 × 0.125 × 8 = 3.0 × 2.9 = 5.77 × 6.83 ≈ (保留两位小数)
6.53 × 10.0 ≈ (保留两位小数) 8 × 1.25 × 7.2 = 3.47 × 5.82 ≈ (保留两位小数)
6.8 × 8.8 = 0.11 × 0.34 ≈ (保留两位小数) 0.5 × 35 =
(4.8 + 2.8) × 3.2 = 9.1 × 9.0 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
7.41 × 0.32 ≈ (保留两位小数) 2.37 8 × 6.4 × 1.25 = 64 9.37 × 9.65 ≈ (保留两位小数) 90.42
0.5 × 4.6 × 2 = 4.6 5.9 × 29 = 171.1 2.4 × 6.3 = 15.12
9.4 × 34 = 319.6 (2.4 + 4.9) × 4.9 = 35.77 4.69 × 0.27 ≈ (保留两位小数) 1.27
1.34 × 6.98 ≈ (保留两位小数) 9.35 2.9 × 3.9 = 11.31 8.04 × 1.97 ≈ (保留两位小数) 15.84
(1.7 + 2.4) × 3.9 = 15.99 6.4 × 8 × 1.25 = 64 (2.3 + 0.5) × 1.1 = 3.08
(2.7 + 3.4) × 0.6 = 3.66 4.78 × 4 × 0.25 = 4.78 0.23 × 5.87 ≈ (保留两位小数) 1.35
7.9 × 1.8 = 14.22 7.9 × 8.7 = 68.73 7.3 × 38 = 277.4
4.4 × 5.2 = 22.88 8.03 × 4.77 ≈ (保留两位小数) 38.30 (2.2 + 0.7) × 2.2 = 6.38
2.4 × 2.3 = 5.52 0.5 × 2 × 4.6 = 4.6 (4.6 + 4.0) × 4.0 = 34.4
(2.6 + 1.9) × 2.4 = 10.8 4 × 2.5 × 1.6 = 16 (5.0 + 2.7) × 3.0 = 23.1
8.0 × 4.8 = 38.4 4.6 × 0.5 × 2 = 4.6 (3.6 + 1.3) × 2.6 = 12.74
9.2 × 6.2 = 57.04 (1.9 + 1.8) × 1.0 = 3.7 9.89 × 5.51 ≈ (保留两位小数) 54.49
(0.3 + 2.7) × 4.0 = 12 6.4 × 6.7 = 42.88 7.1 × 8.83 ≈ (保留两位小数) 62.69
4.8 × 0.125 × 8 = 4.8 3.0 × 2.9 = 8.7 5.77 × 6.83 ≈ (保留两位小数) 39.41
6.53 × 10.0 ≈ (保留两位小数) 65.30 8 × 1.25 × 7.2 = 72 3.47 × 5.82 ≈ (保留两位小数) 20.20
6.8 × 8.8 = 59.84 0.11 × 0.34 ≈ (保留两位小数) 0.04 0.5 × 35 = 17.5
(4.8 + 2.8) × 3.2 = 24.32 9.1 × 9.0 = 81.9