0.91乘99加91乘0.01 1.25乘88加12除以5分之4

问题描述:

0.91乘99加91乘0.01 1.25乘88加12除以5分之4

0.91乘99加91乘0.01
=0.91*(99+1)
=0.91*100
=91
1.25乘88加12除以5分之4
=1.25*88+12*1.25
=1.25*(88+12)
=1.25*100
=125