计算(1)9.8*65.2*1.25-12.5*0.625*18 (2)

问题描述:

计算(1)9.8*65.2*1.25-12.5*0.625*18 (2)

9.8*65.2*1.25-12.5*0.625*18
9.8*62.5*1.25-12.5*0.625*18 =12.5*(6.25*(9.8-1.8))=12.5*6.25*8=12.5*50=625是65.2不是62.5,谢谢