二点五乘零点九七四乘零点四简便方法

2025-04-29 06:47:36
推荐回答(4个)
回答1:

回答2:

2.5*0.974*0.4=2.5*0.4=1*0.974=0.974

回答3:

2.5X0.974X0.4
=2.5X0.4x0.974
=1X0.974
=0.974

回答4:

原式=2.5乘以4乘以0.974=10乘以0.974=9.74