Bill is selling stickers to raise money for a chairty.

Question

Bill is selling stickers to raise money for a charity. He sold 36 stickers on the first day and 23 on the second day. He had 26 stickers left at the end of the second day. How many stickers did Bill have to start with?

Answer 1

We can call the original number of stickers "x"

 

We know that after selling 36 stickers and 23 stickers, we had 26 stickers left.

 

x - 36 - 23 = 26

 

x - 59 = 26

 

Add 59 on both sides

x = 85

 

Bill started out with 85 stickers.

Answer 2

If you take the number of stickers Bill has left (the amount he didn't sell) and add the amount that he did sell, you will get the amount he started with.

 

didn't sell + sold = total started with

26 + (36 + 23) =

 

I'll let you finish it.