2x125x8x50简便计算怎么写

2X125X8X5 =125X8X2X5=1000X10=10000125X897X8=125X8X897=1000X897=89700035X101=35X(100+1)=35X100+35X1=3535973X5X2=973X10=973068X99=68X(100-1)=68X100-68=6800-68=6732请楼主采纳!!!!!

原式=(125x8)x2x6=1000x2x6=2000x6=12000

42x125x8x5=(125*8)x(42*5)=1000*210=210000

2X125=125+125=250

25x125x8x4=(25*4)*(125*8)=100*1000=100000 运用乘法交换律和乘法结合律

解:2x125等于( 250 ) ∵已知需求出2x125等于多少 X * (Y + Z)= X * Y + X * Z ∴2 x 125 = 2 * (100 + 25) = 2 * 100 + 2 * 25 = 200 + 50 = 250 答:2x125等于250

125x48乘以50 =125*8*3*2*50 =1000*3*100 =300000

42x125x8x5=125x8x42x5=1000x210=210000

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