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五年级上册 小数乘法(笔算)

姓名:_______________ 学号:_______________ 用时:_______________
2.0 × 2.1 = 8.81 × 7.16 ≈ (保留两位小数) 0.25 × 4 × 8.4 =
7.71 × 9.2 ≈ (保留两位小数) 4.8 × 5.5 = (4.6 + 1.6) × 2.7 =
(4.9 + 0.6) × 0.2 = 1.52 × 6.82 ≈ (保留两位小数) 3.2 × 8 × 1.25 =
(3.4 + 1.1) × 4.8 = 0.45 × 7.15 ≈ (保留两位小数) 9.33 × 5.55 ≈ (保留两位小数)
0.5 × 5.8 × 2 = (0.2 + 0.7) × 2.2 = (4.8 + 2.8) × 1.1 =
1.25 × 8 × 7.2 = 3.71 × 6.99 ≈ (保留两位小数) 2.06 × 4.45 ≈ (保留两位小数)
4.8 × 3.4 = 4 × 8.4 × 0.25 = (4.0 + 4.1) × 3.2 =
3.98 × 7.49 ≈ (保留两位小数) 1.25 × 8 × 7.2 = 6.8 × 4 × 0.25 =
0.5 × 2 × 3.6 = 4.6 × 0.5 × 2 = 7.3 × 1.7 =
(1.4 + 2.8) × 4.7 = (5.0 + 4.7) × 4.6 = 5.08 × 8.45 ≈ (保留两位小数)
9.6 × 44 = 7.11 × 4.07 ≈ (保留两位小数) 8.5 × 29 =
3.7 × 2.2 = 2.7 × 15 = 6.7 × 7.34 ≈ (保留两位小数)
(4.3 + 2.2) × 1.4 = 0.8 × 5.92 ≈ (保留两位小数) (2.2 + 2.1) × 4.8 =
0.3 × 8.83 ≈ (保留两位小数) 9.46 × 4.81 ≈ (保留两位小数) 0.2 × 27 =
(4.1 + 4.2) × 4.8 = 4.1 × 3.3 = 7.5 × 22 =
2.5 × 4 × 1.6 = 4.86 × 6.1 ≈ (保留两位小数) 1.73 × 4.33 ≈ (保留两位小数)
4 × 8.4 × 0.25 = (3.6 + 4.5) × 3.2 =
五年级上册 小数乘法(笔算)(答案)
姓名:_______________ 学号:_______________ 用时:_______________
2.0 × 2.1 = 4.2 8.81 × 7.16 ≈ (保留两位小数) 63.08 0.25 × 4 × 8.4 = 8.4
7.71 × 9.2 ≈ (保留两位小数) 70.93 4.8 × 5.5 = 26.4 (4.6 + 1.6) × 2.7 = 16.74
(4.9 + 0.6) × 0.2 = 1.1 1.52 × 6.82 ≈ (保留两位小数) 10.37 3.2 × 8 × 1.25 = 32
(3.4 + 1.1) × 4.8 = 21.6 0.45 × 7.15 ≈ (保留两位小数) 3.22 9.33 × 5.55 ≈ (保留两位小数) 51.78
0.5 × 5.8 × 2 = 5.8 (0.2 + 0.7) × 2.2 = 1.98 (4.8 + 2.8) × 1.1 = 8.36
1.25 × 8 × 7.2 = 72 3.71 × 6.99 ≈ (保留两位小数) 25.93 2.06 × 4.45 ≈ (保留两位小数) 9.17
4.8 × 3.4 = 16.32 4 × 8.4 × 0.25 = 8.4 (4.0 + 4.1) × 3.2 = 25.92
3.98 × 7.49 ≈ (保留两位小数) 29.81 1.25 × 8 × 7.2 = 72 6.8 × 4 × 0.25 = 6.8
0.5 × 2 × 3.6 = 3.6 4.6 × 0.5 × 2 = 4.6 7.3 × 1.7 = 12.41
(1.4 + 2.8) × 4.7 = 19.74 (5.0 + 4.7) × 4.6 = 44.62 5.08 × 8.45 ≈ (保留两位小数) 42.93
9.6 × 44 = 422.4 7.11 × 4.07 ≈ (保留两位小数) 28.94 8.5 × 29 = 246.5
3.7 × 2.2 = 8.14 2.7 × 15 = 40.5 6.7 × 7.34 ≈ (保留两位小数) 49.18
(4.3 + 2.2) × 1.4 = 9.1 0.8 × 5.92 ≈ (保留两位小数) 4.74 (2.2 + 2.1) × 4.8 = 20.64
0.3 × 8.83 ≈ (保留两位小数) 2.65 9.46 × 4.81 ≈ (保留两位小数) 45.50 0.2 × 27 = 5.4
(4.1 + 4.2) × 4.8 = 39.84 4.1 × 3.3 = 13.53 7.5 × 22 = 165
2.5 × 4 × 1.6 = 16 4.86 × 6.1 ≈ (保留两位小数) 29.65 1.73 × 4.33 ≈ (保留两位小数) 7.49
4 × 8.4 × 0.25 = 8.4 (3.6 + 4.5) × 3.2 = 25.92