估算下面各题.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≈-数学

题目简介

估算下面各题.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≈-数学

题目详情

估算下面各题.
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≈
题型:解答题难度:中档来源:不详

答案

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,

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