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列数式计算1.25x0.72

答案在此,一定正确

最后一位对齐,当成整数乘法来计算,最后数下小数点后面一共有几位.

1.736111……

1.25*0.8*0.9=1*0.9=0.9

1.25x0.72=1.25x0.8x0.9=1x0.9=0.9验算0.9÷0.72=90/72=10/8=1.25谢谢,请采纳

1.25*0.72=1.25*0.8*0.9=1*0.9=0.9

=0.9X(0.8X1.25)=0.9X1=0.9很高兴为你解答有用请采纳

1.25*0.72=1.25*(0.8*0.9)=1.25*0.8*0.9=0.9

0.72X1.25 =0.8X1.25-0.08X1.25 =1-0.1 =0.9

列竖式计算1.25X0.4X80X2.5=(1.25x80)x(0.4x2.5)=100x1=100

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