BIDMAS - Order of Operations

Learn how to apply BIDMAS to solve expressions in the correct order of operations. Let's get started! 🚀

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Total cost of a £300 phone and £20 each for a charger, headphones, and mouse, paid in 12 installments, as an expression using terms and operators.Expression (300 + 3 × 20) ÷ 12 with terms and operators labelled, applying BIDMAS to a real-world shopping problem.Practising BIDMAS with examples such as of division and multiplication, and addition and subtraction.Step by step example of solving an expression with multiple brackets, 50-(2*(2+4*5)-3), using BIDMAS/BODMAS.

🛎️ What is a Mathematical Expression?

  • A mathematical expression is a calculation made using numbers and operations (+, −, ×, ÷).
  • For example, 3 + 4 × 2 is an expression, but 3 + 4 = 7 is an equation.

🛎️ What is BIDMAS?

  • BIDMAS tells you the correct order to calculate.
  • It stands for Brackets, Indices, Division, Multiplication, Addition, Subtraction.

🛎️ How to Apply BIDMAS?

  • If there are brackets, calculate what is inside them first.
  • If two operations are at the same level, work from left to right.

🛎️ How to Solve Multiple Brackets?

  • If there is more than one set of brackets, start with the innermost brackets.
  • Then continue working outwards, following BIDMAS.

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