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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
7.45 × 5.89 ≈ (保留两位小数) 6.52 × 1.12 ≈ (保留两位小数) 5 × 0.2 × 4.5 =
(3.3 + 0.4) × 4.4 = 4 × 3.6 × 2.5 = 3.2 × 8 × 1.25 =
4.1 × 25 = (0.4 + 1.7) × 4.0 = (2.5 + 2.9) × 4.5 =
2.56 × 2.34 ≈ (保留两位小数) 1.61 × 6.2 ≈ (保留两位小数) (5.0 + 4.6) × 4.8 =
(1.6 + 2.0) × 1.4 = 6.45 × 8.22 ≈ (保留两位小数) 7.6 × 46 =
(3.6 + 4.3) × 2.0 = 3.9 × 2.8 = 4.1 × 31 =
2 × 0.5 × 5.8 = 3.68 × 6.56 ≈ (保留两位小数) 5.3 × 0.89 ≈ (保留两位小数)
6.4 × 5.1 = 3.3 × 41 = 8.75 × 4.41 ≈ (保留两位小数)
1.23 × 3.87 ≈ (保留两位小数) 7.1 × 4.99 ≈ (保留两位小数) 4.9 × 43 =
2.5 × 4 × 1.6 = 8 × 3.2 × 1.25 = 8 × 1.25 × 7.2 =
5.8 × 0.5 × 2 = 5 × 4.5 × 0.2 = (3.3 + 2.1) × 1.6 =
7.5 × 8.5 = 4.93 × 7.56 ≈ (保留两位小数) 1.1 × 5.8 =
4 × 0.25 × 4.78 = 3.3 × 8.1 = 6.74 × 2.19 ≈ (保留两位小数)
9.55 × 4.9 ≈ (保留两位小数) 0.9 × 6.4 = 3.75 × 7.48 ≈ (保留两位小数)
(4.8 + 3.3) × 0.1 = 6.8 × 5.06 ≈ (保留两位小数) 6.1 × 21 =
7.29 × 7.21 ≈ (保留两位小数) 2.25 × 8.88 ≈ (保留两位小数) (0.3 + 0.3) × 4.6 =
4.2 × 9.8 = 9.0 × 5.3 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
7.45 × 5.89 ≈ (保留两位小数) 43.88 6.52 × 1.12 ≈ (保留两位小数) 7.30 5 × 0.2 × 4.5 = 4.5
(3.3 + 0.4) × 4.4 = 16.28 4 × 3.6 × 2.5 = 36 3.2 × 8 × 1.25 = 32
4.1 × 25 = 102.5 (0.4 + 1.7) × 4.0 = 8.4 (2.5 + 2.9) × 4.5 = 24.3
2.56 × 2.34 ≈ (保留两位小数) 5.99 1.61 × 6.2 ≈ (保留两位小数) 9.98 (5.0 + 4.6) × 4.8 = 46.08
(1.6 + 2.0) × 1.4 = 5.04 6.45 × 8.22 ≈ (保留两位小数) 53.02 7.6 × 46 = 349.6
(3.6 + 4.3) × 2.0 = 15.8 3.9 × 2.8 = 10.92 4.1 × 31 = 127.1
2 × 0.5 × 5.8 = 5.8 3.68 × 6.56 ≈ (保留两位小数) 24.14 5.3 × 0.89 ≈ (保留两位小数) 4.72
6.4 × 5.1 = 32.64 3.3 × 41 = 135.3 8.75 × 4.41 ≈ (保留两位小数) 38.59
1.23 × 3.87 ≈ (保留两位小数) 4.76 7.1 × 4.99 ≈ (保留两位小数) 35.43 4.9 × 43 = 210.7
2.5 × 4 × 1.6 = 16 8 × 3.2 × 1.25 = 32 8 × 1.25 × 7.2 = 72
5.8 × 0.5 × 2 = 5.8 5 × 4.5 × 0.2 = 4.5 (3.3 + 2.1) × 1.6 = 8.64
7.5 × 8.5 = 63.75 4.93 × 7.56 ≈ (保留两位小数) 37.27 1.1 × 5.8 = 6.38
4 × 0.25 × 4.78 = 4.78 3.3 × 8.1 = 26.73 6.74 × 2.19 ≈ (保留两位小数) 14.76
9.55 × 4.9 ≈ (保留两位小数) 46.80 0.9 × 6.4 = 5.76 3.75 × 7.48 ≈ (保留两位小数) 28.05
(4.8 + 3.3) × 0.1 = 0.81 6.8 × 5.06 ≈ (保留两位小数) 34.41 6.1 × 21 = 128.1
7.29 × 7.21 ≈ (保留两位小数) 52.56 2.25 × 8.88 ≈ (保留两位小数) 19.98 (0.3 + 0.3) × 4.6 = 2.76
4.2 × 9.8 = 41.16 9.0 × 5.3 = 47.7