简便算法:3×22.5%+2.25×7

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简便算法:3×22.5%+2.25×7

简便算法:3×22.5%+2.25×7
简便算法:3×22.5%+2.25×7

简便算法:3×22.5%+2.25×7
3×22.5%+2.25×7=2.25*7.3

=3(0.225+2.25)+4(2.25)=3(0.675+2.25)+10,结果自己计算吧

这个简便算法也不简便多少。不会是题打错了吧
3×22.5%+2.25×7=2.25*7.3