4.4+44*12-88的简便算法
问题描述:
4.4+44*12-88的简便算法
答
=44*(0.1+12-2)=44*10.1=444.4
答
4.4+44*12-88=4.4+44*(10+2)-88=4.4+44*10+44*2-88=444.4
答
4.4+44×12-44×2
=4.4+44×(12-2)
=4.4+440
=444.4
答
4.4+44*12-88
=4.4+44*12-44*2
=4.4+44*(12-2)
=4.4+44*10
=4.4+440
=444.4