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12.5乘9.6竖式

12.5=100/8 9.6X100/8=120

第一个规律是除以0.5比如: 12.5除以5=2.52.5除以5=0.50.5除以5=0.10.1除以5等于0.020.02除以5等于0.004第二个同上,除以0.4天,看完才知道是小学5年纪的!本人高3数学课代表

12.5*9=12.5*8+12.5=112.5,12.5*0.6=7.5,答案是120

=12.5*8*1.2=100*1.2=120

12.5X9.6X5X2.5 =12.5X(8X4X0.3)X5X2.5 =(12.5X8)X(0.3X5)X(2.5X4) =100X1.5X10 =1500

=25/2 * 24/25 -(16-0.1)*2 =12-16*2+0.1*2 =12-32+0.2 =-19.8

12.5*9.6+0.25*96 = 12.5*(8*1.2)+0.25*(4*24) =(12.5*8)*1.2+(0.25*4)*24 =100*1.2+1*24 =144

12.5乘9.6乘5乘2.5=12.5*8*0.3*4*2.5=100*0.3*10=300

8*9.6*12.5=8*12.5*9.6=100*9.6=960

1.25*(10 -0.4)=125-0.5=124.5

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