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?
- Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
- Which operation is performed first in order of operations?
- Parentheses (anything inside parentheses)
- Which operation is performed second in order of operations?
- Exponents
- Do multiplication and division have the same precedence level?
- Yes, they are equal and evaluated left to right
- Do addition and subtraction have the same precedence level?
- Yes, they are equal and evaluated left to right
- Solve: 2 + 3 * 4
- 14
- Solve: 10 - 3 - 2
- 5
- Solve: 12 / 3 / 2
- 2
- Solve: 2^3 + 1
- 9
- Solve: (2 + 3)^2
- 25
- In the expression 8 / 2 * 4, which operation comes first?
- Division, because they have equal precedence and you work left to right
- Solve: 6 + 2 * 3^2
- 24
- What is a common mistake when solving 10 - 5 + 2?
- 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?
- Multiplying before dividing. Correct: 10 (work left to right)
- Why do we need order of operations?
- So everyone solves the same expression the same way and gets the same answer