简便方法怎样运算:100000-(79999+7999+799+79+7)
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简便方法怎样运算:100000-(79999+7999+799+79+7)
简便方法怎样运算:100000-(79999+7999+799+79+7)
简便方法怎样运算:100000-(79999+7999+799+79+7)
原式=100000 - (80000+8000+800+80+8)- 5
=100000 - 88888 -5
=11112 - 5
=11107