4.03×1.98≈ | 3.95×0.2≈ | 8.1×10.01≈ | 16.2÷1.9≈ |
59.8÷3.1≈ | 10.32÷0.21≈ | 99.9÷0.5≈ | 70.2×3.02≈ |
解:①4.03×1.98≈8, | ②3.95×0.2≈0.8, | ③8.1×10.01≈80, | ④16.2÷1.9≈8, |
⑤59.8÷3.1≈20, | ⑥10.32÷0.21≈50, | ⑦99.9÷0.5≈200, | ⑧70.2×3.02≈210, |
科目:小學(xué)數(shù)學(xué) 來源: 題型:
4.03×1.98≈ | 3.95×0.2≈ | 8.1×10.01≈ | 16.2÷1.9≈ |
59.8÷3.1≈ | 10.32÷0.21≈ | 99.9÷0.5≈ | 70.2×3.02≈ |
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