Order of operations rules with worked mini-examples showing common mistakes to avoid.
27 cards · basic cards · AI-written, checked twice. Edit anything.
- What does PEMDAS stand for?
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Parentheses, Exponents, Multiplication, Division, Addition, Subtraction- Which operation is performed first in order of operations?
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Parentheses (anything inside parentheses)- Which operation is performed second in order of operations?
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Exponents- Do multiplication and division have the same precedence level?
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Yes, they are equal and evaluated left to right- Do addition and subtraction have the same precedence level?
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Yes, they are equal and evaluated left to right- Solve: 2 + 3 * 4
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14- Solve: 10 - 3 - 2
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5- Solve: 12 / 3 / 2
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2- Solve: 2^3 + 1
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9- Solve: (2 + 3)^2
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25- In the expression 8 / 2 * 4, which operation comes first?
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Division, because they have equal precedence and you work left to right- Solve: 6 + 2 * 3^2
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24- What is a common mistake when solving 10 - 5 + 2?
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Subtracting in the wrong direction, or doing addition before subtraction. Correct: 7 (work left to right)- What is a common mistake when solving 20 / 4 * 2?
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Multiplying before dividing. Correct: 10 (work left to right)- Why do we need order of operations?
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So everyone solves the same expression the same way and gets the same answer
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