简便运算5252*39/26-78
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简便运算5252*39/26-78
简便运算5252*39/26-78
简便运算5252*39/26-78
5252*39/26-78
=2626*2*39/26-78
=78*2626/26-78
=78*101-78
=78*(101-1)
=78*100
=7800
简便运算5252*39/26-78
简便运算5252*39/26-78
简便运算5252*39/26-78
5252*39/26-78
=2626*2*39/26-78
=78*2626/26-78
=78*101-78
=78*(101-1)
=78*100
=7800