I assume your topic is like this.

Xiaohua, Xiaoming and Xiaoli * * * have a total of 54 cards. Xiaohua asked Xiaoming for 3 cards and Xiaohua gave Xiaoli 5 cards (so there are as many cards for three people). How many are there in the original?

If you solve it this way, that's it.

After changing the card, three people have their own.

54/3= 18 (Zhang)

Xiao Ming is short of three, but Xiao Ming has one.

18+3=2 1 (Zhang)

Xiaoli has five more, so Xiaoli originally had one.

18-5= 13 (Zhang)

So Xiaohua originally had

54-2 1- 13=20 (Zhang)

A: There were 20 florets, 2 1 piece for Xiaoming and 31piece for Xiaoli.