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75除以20+25除以20简便方法怎么写

75除以20+25除以20简便方法是75/20+25/20=(75+25)/20=100/25=4。

75÷20+25÷20 =(75+25)÷20 =100÷20 =5

70÷20+25÷20=4.75 回答完毕~ 有疑问请追问~无疑问请点击【采纳】~ 祝学习进步\(^o^)/~~~

写成竖式,把0约掉,8除2等于4

900÷25 =9×(100÷25) =9×4 =36

160÷(25一20)X2 =160÷5X2 =32X2 =64

原式 =74x25÷74x25 =(74÷74)x(25x25) =1x25x25 =(20+5)x(20+5) =20x20+20x5+5x20+5x5 =400+2x100+25 =625 供参考。

0.7✘【(20-4.25)÷1.5】 =0.7×[15.75÷1.5] =0.7×[31.5÷3] =0.7×10.5 =7.35

210÷25÷24 =210÷5÷5÷6÷4 =210÷5÷6÷5÷4 =210÷(5×6)÷(5×4) =210÷30÷20 =7÷20 =7/20

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