3.85×6点5+2点5×3点八五+3点八五用简便运算怎么算

2025-03-24 21:00:14
推荐回答(1个)
回答1:

3.85x6.5+3.85×2.5十3.85 =3.85x(6.5+2.5+1) =3.85x91 =350.35