4.35*99+二十分之七+4怎么简算!脱式简算!

问题描述:

4.35*99+二十分之七+4怎么简算!脱式简算!

4.35*99+7/20+4
=4.35*(100-1)+35/100+4
=435-4.35+0.35+4
=435-4-0.35+0.35+4
=435-4+4
=435

4.35×99+7/20+4
=4.35×99+4.35
=4.35×(99+1)
=4.35×100
=435

4.35*99+二十分之七+4
=4.35*99+4.35
=4.35*(99+1)
=4.35*100
=435