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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
7.39 × 2.69 ≈ (保留两位小数) 7.5 × 17 = 5.8 × 7.4 =
3.2 × 1.0 = 7.2 × 8 × 1.25 = 3.01 × 9.06 ≈ (保留两位小数)
9.42 × 3.93 ≈ (保留两位小数) 4.33 × 1.97 ≈ (保留两位小数) 2.5 × 28 =
0.125 × 4.8 × 8 = 3.0 × 6.0 = 9.5 × 6.1 =
3.0 × 3.7 = 5.6 × 1.1 = 4.9 × 8 =
3.9 × 16 = 2.8 × 18 = (1.4 + 4.4) × 3.3 =
6.96 × 1.3 ≈ (保留两位小数) 6.4 × 8 × 1.25 = 9.42 × 8.07 ≈ (保留两位小数)
(4.9 + 2.5) × 1.2 = 5.12 × 7.99 ≈ (保留两位小数) 0.5 × 5.6 =
1.4 × 16 = 1.25 × 8 × 6.4 = 4 × 0.25 × 8.4 =
(4.3 + 1.6) × 3.4 = 9.53 × 8.61 ≈ (保留两位小数) (4.9 + 2.8) × 3.0 =
5.25 × 3.2 ≈ (保留两位小数) (0.8 + 4.0) × 2.9 = 6.56 × 0.92 ≈ (保留两位小数)
8.24 × 3.09 ≈ (保留两位小数) (3.6 + 2.3) × 1.8 = 9.7 × 49 =
(2.7 + 2.1) × 2.6 = 3.6 × 49 = 6.1 × 0.8 =
0.3 × 3.6 = 0.125 × 6.4 × 8 = 2 × 3.6 × 0.5 =
8.07 × 2.02 ≈ (保留两位小数) 5.6 × 25 = 4.92 × 7.81 ≈ (保留两位小数)
(0.2 + 1.4) × 4.9 = 3.7 × 4.4 = 0.5 × 2 × 4.6 =
9.26 × 0.65 ≈ (保留两位小数) 0.9 × 1.1 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
7.39 × 2.69 ≈ (保留两位小数) 19.88 7.5 × 17 = 127.5 5.8 × 7.4 = 42.92
3.2 × 1.0 = 3.2 7.2 × 8 × 1.25 = 72 3.01 × 9.06 ≈ (保留两位小数) 27.27
9.42 × 3.93 ≈ (保留两位小数) 37.02 4.33 × 1.97 ≈ (保留两位小数) 8.53 2.5 × 28 = 70
0.125 × 4.8 × 8 = 4.8 3.0 × 6.0 = 18 9.5 × 6.1 = 57.95
3.0 × 3.7 = 11.1 5.6 × 1.1 = 6.16 4.9 × 8 = 39.2
3.9 × 16 = 62.4 2.8 × 18 = 50.4 (1.4 + 4.4) × 3.3 = 19.14
6.96 × 1.3 ≈ (保留两位小数) 9.05 6.4 × 8 × 1.25 = 64 9.42 × 8.07 ≈ (保留两位小数) 76.02
(4.9 + 2.5) × 1.2 = 8.88 5.12 × 7.99 ≈ (保留两位小数) 40.91 0.5 × 5.6 = 2.8
1.4 × 16 = 22.4 1.25 × 8 × 6.4 = 64 4 × 0.25 × 8.4 = 8.4
(4.3 + 1.6) × 3.4 = 20.06 9.53 × 8.61 ≈ (保留两位小数) 82.05 (4.9 + 2.8) × 3.0 = 23.1
5.25 × 3.2 ≈ (保留两位小数) 16.80 (0.8 + 4.0) × 2.9 = 13.92 6.56 × 0.92 ≈ (保留两位小数) 6.04
8.24 × 3.09 ≈ (保留两位小数) 25.46 (3.6 + 2.3) × 1.8 = 10.62 9.7 × 49 = 475.3
(2.7 + 2.1) × 2.6 = 12.48 3.6 × 49 = 176.4 6.1 × 0.8 = 4.88
0.3 × 3.6 = 1.08 0.125 × 6.4 × 8 = 6.4 2 × 3.6 × 0.5 = 3.6
8.07 × 2.02 ≈ (保留两位小数) 16.30 5.6 × 25 = 140 4.92 × 7.81 ≈ (保留两位小数) 38.43
(0.2 + 1.4) × 4.9 = 7.84 3.7 × 4.4 = 16.28 0.5 × 2 × 4.6 = 4.6
9.26 × 0.65 ≈ (保留两位小数) 6.02 0.9 × 1.1 = 0.99