18.75减0.23乘以2减4.54和(4.2加4.2除以2.1)除以0.2和0.5乘以【(0.09加1.29)除以0.23】能不能简便?
如果能简便就列出来简便之后的算式
人气:351 ℃ 时间:2019-08-20 01:07:33
解答
能简便18.75-0.23×2-4.54=18.75-0.46-4.54=18.75-(0.46+4.54)=13.754.2+4.2÷2.1÷0.2=4.2+4.2÷(2.1×0.2)=4.2+4.2÷0.42=4.2+10=14.20.5×(0.09+1.29)÷0.23=0.5×1.38÷0.23=0.5×6=3
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