0.78X98用简便计算怎么算

2025-04-13 14:48:14
推荐回答(4个)
回答1:

(100-2)×0.78 =100×0.78-2×0.78 =78-1.56 =76.44

回答2:

 

回答3:

0.78*(100-2)

回答4:

0.78×(100-2)=78-1.56=76.44