5.12+5.12*9用简便方法怎样做,请帮忙
问题描述:
5.12+5.12*9用简便方法怎样做,请帮忙
答
=5.12(1+9)
=5.12*10
=51.2
5.12+5.12*9用简便方法怎样做,请帮忙
=5.12(1+9)
=5.12*10
=51.2