25除4分之5+5分之4÷4分之1+5分之1×4简便计算

6.3×10分之7+2.7÷7分之10+0.7简便计算,速度!30分钟以内
2025-04-06 15:20:47
推荐回答(1个)
回答1:

解:
(1)原式
=25×4/5+4×4/5+1×4/5
=(25+4+1)×4/5
=30×4/5
=24

(2)原式
=6.3×0.7+2.7×0.7+1×0.7

=(6.3+2.7+1)×0.7
=10×0.7
=7