0.23×56+2.3×440+0.46×0.5

发布时间:2020-08-11 13:31:04

0.23×56+2.3×440+0.46×0.5

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解:0.23×56+2.3×440+0.46×0.5,
=0.23×56+0.23×4400+0.23×2×0.5,
=0.23×(56+4400+1),
=0.23×4457,
=1025.11;
解析分析:算式中2.3×440+0.46×0.5改写成0.23×4400+0.23×2×0.5可据乘法分配律进行计算.


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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