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

Video Lesson
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Flashcards
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🛎️ 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.
Practice Questions
Test your understanding
Correct! 🎉 +10 pointsNot quite right
By applying the order of operations: , and then .
Correct! 🎉 +10 pointsNot quite right
Using the order of operations: , and then .
Correct! 🎉 +20 pointsNot quite right
Using BIDMAS/BODMAS: , then , and . Subtracting gives .
Correct! 🎉 +20 pointsNot quite right
Using BIDMAS/BODMAS: calculate , then , add these results: , and subtract 5 to get 11.
Correct! 🎉 +20 pointsNot quite right
Using BIDMAS/BODMAS: calculate , then add . Next, divide , and subtract .
Correct! 🎉 +30 pointsNot quite right
Using BIDMAS/BODMAS: calculate and . Next, multiply , then add . Finally, calculate .
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Interactive Activity
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