When I grew up, we used a tally mark system where we drew four vertical lines and crossed them with a fifth. I think this is common in the West and it is often shown in movies where the character is counting days in a prison.
But curiously, in Japan, they count this differently!
In Japan they use the character 正 as a full five.
Source:
https://www.japanesewithanime.com/2018/02/japanese-tally-mark.html