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74x25-25x24

124x25-25x24 =(124-24)x25 =100x25 =2500

76x25+25x24 =(76+24)x25 =100x25 =2500 希望能帮到你!

74X25十25十25X25=(74+1+25)x25=100x25=2500

提取公因式(76+24)x25=100x25=2500

25+25*24=25*(1+24)=25*25=625

解:24x74十25x24+24二24x(74+25十1)二24x100二2400

原式=76x25+25x23+25=(76+23+1)x25=(99+1)x25=100x25=2500 供参考.

25*64-25*24=25*(64-24)=25*40=1000

74x25-828÷23=1850-36=1814

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