题目内容
(2012?泗县模拟)3.7×0.172+0.37×8.28.
分析:我们把3.7缩小10倍把0.172扩大10倍,然后运用乘法的分配律进行计算即可.
解答:解:3.7×0.172+0.37×8.28,
=0.37×1.72+0.37×8.28,
=0.37×(1.72+8.28),
=0.37×10,
=3.7;
=0.37×1.72+0.37×8.28,
=0.37×(1.72+8.28),
=0.37×10,
=3.7;
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
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