I used to believe that, in Algebra, every letter was assigned a number and it never changed. Like A would be 1, B would be 2, etc. So all you had to do was memorize the number that went with the letter and put it in every time you saw it...I never quite got the hang of Algebra...
A childhood belief about counting

others believed things like this
- when i was little i believed that your social security number was the number you were born on the earth — christine
- I thought everyone only had a set number of breaths before they died.
I breathed slowly for a long time.Anon - i could swear eleventeen was a number for the longest time -- it still sounds pretty convincing.— erin
- I used to believe that l-m-n-o-p was one letter.— Micheal
- I used to believe LMNOP was one whole letter.— Walked
- i used to believe i would get my letter to hogwarts when i turned 11— katie Phillips