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116问答网 > 二点25+1点25×0点一八等于多少简便运算？

二点25+1点25×0点一八等于多少简便运算？

2025-03-16 07:18:42

推荐回答（2个）

回答1：

2.25+1.25*0.18
=2.25+1.25*（0.2-0.02）
=2.25+1.25*0.2-1.25*0.02
=2.25+0.25-0.025
=2.5-0.025
=2.475

回答2：

这道题直接计算就行，
1.25×0.18=0.225，
然后0.225再和2.25进行计算，
当然1.25×0.18，
也可以看成1.25×0.16+1.25×0.02=0.225

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