Order of Operations
What do you DO first?
Learn the hierarchy. Then choose the first operation — not the final answer.
Recommended starting range: roughly Grades 5–8, with challenge problems suitable beyond that depending on curriculum.
Optional Demo
Order of Operations
PEMDAS is a memory aid. The important idea is which operations have priority — and which operations are peers.
PParentheses first
EExponents next
MDMultiply OR divide — same level, left → right
ASAdd OR subtract — same level, left → right
Key idea: multiplication does NOT automatically come before division, and addition does NOT automatically come before subtraction. MD are peers. AS are peers.
Round 10 correct
What do you do first?
Choose the one operation that must be performed first under the standard order of operations.
Practice Complete