標題:

45-20%=

發問:

45-20%=

最佳解答:

45-20% =45-(45x20/100) =45-(45x1/5) =45-9 =36

其他解答:

45-20% =36|||||45-0.02=44.8|||||45 - 20% = 40 - 0.2 = 39.8|||||答案係15%,其實你5洗睇個%(除了%係頭and乘除),只要好似二年級D加減數咁計就得|||||45-20% =45-o.2 =44.8 because 45 and 20%are not the same .so we must change them into the same ,ofcruse ,you can change it in to 20/100,too 2007-07-23 17:26:06 補充： sorry .the anser is 36.you must -20%in 45 first so it is 45-20%=45x(100%-20%)=45x80%=45xo.8=36|||||45-20%=9

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