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Topic 1 · Lessons

Numbers Operations

Add, subtract, multiply, divide — order of operations.

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📘 Step-by-step lessons

When an expression has more than one operation, follow a strict order so everyone gets the same answer.

  1. 1

    1. Brackets first

    Solve anything inside ( ) before anything else.

    8 × (5 + 2) → 8 × 7 = 56
  2. 2

    2. Orders / Exponents

    Then powers and roots, like 3² or √9.

    2 + 3² = 2 + 9 = 11
  3. 3

    3. Division & Multiplication

    Work left to right — they are equal in rank.

    12 ÷ 4 × 2 = 3 × 2 = 6
  4. 4

    4. Addition & Subtraction

    Finally add and subtract, again left to right.

    10 − 3 + 2 = 7 + 2 = 9
💡 Tip. Say it aloud: 'Brackets, Orders, Divide, Multiply, Add, Subtract.'