Math Order of operation

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?

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  3. 👁 905
  1. 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...

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  2. 80

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  3. 111

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  4. 876

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  5. 1000

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