Question

1/8×34+1.25×2.6+20×0.15有简便算法吗？

Answer 1

1/8×34+1.25×2.6+20×0.15
【整理算式】
=34/8+125×2.6/100+20*15/100
【约分】
=17/4+5×2.6/4+12/4
=31.6/4
=7.9

Answer 2

解:1/8×34+1.25×2.6+20×0.15=34÷8+(1+1/4)×2.6+3=4.25+2.6+2.6÷4+3=4.25+2.6+0.65+3=4.25+0.65+2.6+3=4.9+2.6+3=10.5
希望可以帮到你

Answer 3

1/8×34+1.25×2.6+20×0.15有简便算法：
1/8×34+1.25×2.6+20×0.15
=0.125×34+1.25×2.6+20×0.15
=1.25×3.4+1.25×2.6+20×0.15
=1.25×(3.4+2.6)+1.5×2
=1.25×6+3
=7.5+3
=10.5

Answer 4

这道题1/8×34，加上一点25×26+0点5151515，可以把1/8变成零点125×34加上，0.125乘上26。再加上20×0点一五就可以了

Answer 5

1/8×34+1.25×2.6+20×0.15
=0.125×34+1.25×2.6+20×0.15
=1.25×（3.4+2.6）+2×1.5
=1.25×6+3
=7.5+3
=10.5