21除以1.25用简便算法计算
问题描述:
21除以1.25用简便算法计算
答
21÷1.25
=(21×8)÷(1.25×8)
=168÷10
=16.8
答
aaaaaaaaaaaa,怎么算
答
21 ÷ 1.25
= 21X8÷1.25X8
= 168÷10
= 16.8
答
21÷1.25
=21÷(7×0.25)
=21÷7÷0.25
=3÷0.25
=12
答
21÷1.25
=21÷﹙1.25×8﹚
=21÷10×8
=2.1×8
=16.8
答
21÷1.25=21÷5/4=21x4/5=21x8÷10=16.8
答
21除以1.25
=2.1×10÷1.25
=2.1×8
=16.8