What is expense?

Expense is what you use up when you buy or do something fun or useful.

Imagine you have a piggy bank full of coins, that’s your money. When you want to buy a toy, you take some coins out of the piggy bank. The coins you took are your expense because they're used up for something else.

Let's say you and your friend both have 10 cookies. If you eat 3 cookies, that’s your expense, you used up 3 cookies to feel full and happy. Your friend eats 2 cookies, so their expense is only 2 cookies. You both had the same number of cookies at first, but because of different expenses, you now have different numbers left.

If you save your coins instead of spending them on toys right away, you're not using up your money as much, that’s like having a bigger piggy bank for later. But if you spend too many coins at once, you might not have enough for something else you want tomorrow.

So, expense is just the amount of your money you use up to do or get something.