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4x8x25x125的简便计算

原式=(4x25)x(8x125)=100x1000=100000

[(4x8)x25-8]x125=4*8*25*125-8*125=4*25*8*125-8*125=100*1000-1000=100000-1000=99000

125x25x4x8=(125x2)x4x(25x4)=250x4x100=1000x100=100000

= (8*125)*(25*4)=1000*100=100000

用简便的方法计算 629x2x125x4x8x25x5629x2x125x4x8x25x5=629* (125*8)*(25*4)*(5*2)=629*1000*100*10=629000000

224x25x125x4x8=224x(25x4)x(125x8)=224x100x1000=22400000

125x14x4x8x25x5x20=125x8x4x25x5x20x14=(125x8)x(4x25)x(5x20)x14=1000x100x100x14=140000000

[(4x8)x25-8]x125=4*8*25*125-8*125=4*25*8*125-8*125=100*1000-1000=100000-1000=99000 望采纳

125x7x25x4x8=7x(125x8)x(25x4)=7x1000x100=700000希望能帮到你!

4*8*25*125 =4*25*8*125 = 100*1000 =100000

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