Adam has $450. He spends $210 on food. Later he divides all the money into four parts and gives three parts to his mom and one part he keeps for himself. Then he found $20 in one of his Minecraft books being used as a bookmark. Write an expression that shows all of this determine how much money he has left?

Its 110

Just write the expression in the order you learn the facts:

Adam has $450: 450
He spends $210: 450-210
he divides all the money into four parts and one part he keeps: (450-210)/4
Here you need the parentheses, because 450-210/4 means that only the 210 is divided into 4 parts.
he found $20: (450-210)/4+20

(450-210)/4 + 20

Now, to evaluate that, you do need to know the order of operation. Oddly enough, you do them in the same order you wrote them down...

80

876 1000

It’s 60 because PEMDAS so inside the parentheses always go first

To determine how much money Adam has left, we need to subtract his expenses from his initial amount, add the money he found, and then divide the remaining amount into four parts.

Let's break it down step by step:

1. Initial amount Adam had: $450

2. Expenses on food: -$210

3. Subtracting the expenses from the initial amount: $450 - $210 = $240

4. Money Adam found: +$20

5. Adding the amount Adam found to the remaining amount: $240 + $20 = $260

6. Dividing the remaining amount into four parts: $260 / 4 = $65

Therefore, the expression that shows how much money Adam has left is $65.

Note: In case you want to write the expression strictly, it would be: 450 - 210 + 20 / 4 = 65. However, breaking down the steps helps to understand the calculation better.