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Learn: Mastering the Order of Operations (BIDMAS/BODMAS)
iGCSE Mathematics
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Welcome!Welcome to your personalised lesson on mastering the order of operations! Since you've already studied essential mathematical symbols and operations, we'll build on that foundation to help you confidently solve complex expressions using BIDMAS.
What is BIDMAS?BIDMAS (or BODMAS) stands for Brackets, Indices, Division, Multiplication, Addition, and Subtraction. It is the order in which mathematical operations must be carried out to ensure accurate results.
Why is BIDMAS important?BIDMAS ensures consistency in solving mathematical expressions. Without it, different people might arrive at different answers for the same problem!
Quick check: What does the 'B' in BIDMAS represent?
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How does BIDMAS work?When solving an expression, always follow the BIDMAS order:Brackets: Solve anything inside brackets first.Indices: Handle powers or roots.Division and Multiplication: Work from left to right.Addition and Subtraction: Finally, solve any addition or subtraction from left to right.
Match the items on the left with their correct pairs on the right
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Common mistakes with BIDMASA common error is ignoring the order of division and multiplication, or addition and subtraction. Remember, these pairs are solved from left to right regardless of their position.
Which of the following statements are true about BIDMAS? (Select all that apply)
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Practice with BIDMASLet’s practise applying BIDMAS step by step to solve expressions accurately.
Match the items on the left with their correct pairs on the right
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Match the items on the left with their correct pairs on the right
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In BIDMAS, {{blank0}} and {{blank1}} are solved before addition and subtraction.
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Review Time!Great work! You've explored BIDMAS and practised solving expressions. Let's test your understanding with a final review.
Which operations must be completed first according to BIDMAS? (Select all that apply)
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Match the items on the left with their correct pairs on the right
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Which of the following is the correct solution to \(5 + 3 \times 2\)?
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Congratulations!You’ve mastered BIDMAS and can now solve expressions confidently. Well done!
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