99x97⼀98等于多少脱式计算?

2025-02-22 16:09:36
推荐回答(2个)
回答1:

=(98+1)×97/98
=98×97/98+1×97/98
=97+97/98
=97又97/98

回答2:

99×97/98
=98×97/98+97/98
=97又97/98