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78×25X×25简便运算

=25*(78+44-22) =25*100 =2500

(78*5-78)*25的简便计算(78*5-78)*25=78*4*25=78*100=7800.

原式等于25*(78-58)=500~回答完毕~~\(^o^)/~祝学习进步~~~

(78*5-78)*25=78*(5-1)*25=78*4*25=78*100=7800

78*25÷78*25=(78÷78)x25x25=25x25=625

25x78-74X25的简便计算=25x(78一74)=25*4=100

25x78-25x25十53x75=25x(78 - 25 + 53)=25x106=2650

8*78*25=4*2*78*25=25*4*2*78=100*2*78=200*78=15600

原式=78*(25+25)=3900

8x78x25=4x25x2x78=200x78=15600

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