Quantitative aptitude · lesson 5 of 30 · free

Simplification with BODMAS — Quantitative aptitude for kids

A sum like 48 ÷ 6 × 2 + 3 has only one right answer, because everyone follows the same order: BODMAS. Brackets first, then “of”, then ÷ and × from left to right, and last + and − from left to right.

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The method

BODMAS — “Brackets → Of → Division and Multiplication (left to right) → Addition and Subtraction (left to right)”

  1. Work out anything in brackets first.
  2. Then “of” (as in 2/3 of 27).
  3. ÷ and × have the same rank: do them from left to right.
  4. + and − have the same rank: do them last, from left to right.

Use it for: Simplification questions in school and aptitude tests, calculators and spreadsheets, and coding.

Worked example: 48 ÷ 6 × 2 + 3 = 19

  1. ÷ and × from left to right: 48 ÷ 6 = 8, then 8 × 2 = 16.
  2. Then + : 16 + 3 = 19.

Check: (48 ÷ 6) × 2 + 3 = 19 — not 48 ÷ 12 + 3 = 7 ✓

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✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

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🏁 Lesson 5 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

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🖨️ BODMAS Simplification Worksheet

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