4.36-3.27+5.64-4.73,还有42.81+27.45-12.8+22.55这两道题怎样用简便方法计算,
4.36-3.27+5.64-4.73,还有42.81+27.45-12.8+22.55这两道题怎样用简便方法计算,
数学人气：286 ℃时间：2020-03-29 14:02:50
优质解答
4.36-3.27+5.64-4.73=（4.36+5.64）-（3.27+4.73）=10-8=2,42.81+27.45-12.8+22.55=（42.81-12.8）+（27.45+22.55）=30.01+50=80.01.
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