Maths · KS3 Y7 · Number

Order of operations

Order of operationsFree7:37Heddy Score 3 of 7, below the standard
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What you need to know

  • The order of operations is an agreed rule so that everyone gets the same answer.
  • Brackets come first, then powers, then multiplication and division, then addition and subtraction.
  • Multiplication and division have equal priority, so work them from left to right; the same applies to addition and subtraction.
  • For example, 18 ÷ (6 + 3) × 15 = 18 ÷ 9 × 15 = 30.

In this clip

Runs 7:37, from 0:09 to 7:46 of the full video.

Heddy Score3/7, Below the standard
See the seven stars
  • Trusted source · passed. The creator's own upload, live and playable here.
  • On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
  • Spec-true · not judged yet. Accurate, and right for the current UK specification.
  • Focused · passed. One idea, short enough to watch in one go.
  • Accessible · passed. Good captions, clear sound and pictures.
  • Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
  • Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
★ passed · ☆ pending · ✕ failed
Our students

Not enough students yet

Our own students' answers. These are what move ★7 Proven.
On YouTube

752K views · 6.85K likes · Math with Mr. J 2.03M subscribers

As reported by YouTube on 2026-11-02. Not part of the Heddy Score.
How the Heddy Score works

Why we picked it

Four carefully worked examples that show each step of the order of operations, including the left-to-right rule.

Math with Mr. J on YouTubechecked 2026-10-22

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