Why BODMAS and BIDMAS are yesterday’s news.... © Professor Assessor here to help explain...

Why not BODMAS/BIDMAS? Are you used to using one of these to order steps in calculations? BracketsBrackets OrderIndices DivideDivide MultiplyMultiply AddAdd SubtractSubtract Yes, so what’s the problem? © Well there are 3 problems in fact...

Why not BODMAS/BIDMAS? Are you used to using one of these to order steps in calculations? BracketsBrackets OrderIndices DivideDivide MultiplyMultiply AddAdd SubtractSubtract Brackets are not the only way of Grouping numbers together in a calculation ©

Why not BODMAS/BIDMAS? Are you used to using one of these to order steps in calculations? BracketsBrackets OrderIndices DivideDivide MultiplyMultiply AddAdd SubtractSubtract Divide is not more important than Multiply – they have the SAME importance! ©

Why not BODMAS/BIDMAS? Are you used to using one of these to order steps in calculations? BracketsBrackets OrderIndices DivideDivide MultiplyMultiply AddAdd SubtractSubtract Add is not more important than Subtract – they also have the SAME importance! ©

Why not BODMAS/BIDMAS? Are you used to using one of these to order steps in calculations? BracketsBrackets OrderIndices DivideDivide MultiplyMultiply AddAdd SubtractSubtract © Oh dear! Not very useful then!

Divide is not more important than Multiply – they have the SAME importance! Add is not more important than Subtract – they also have the SAME importance! Try a new way... *If things are on the same line, you must do them in the order they come! Grouping Indices Multiply   Divide* Add   Subtract* Brackets are not the only way of Grouping numbers together in a calculation © Try this instead....

B*DMAS B*DMAS Try a new way... GIMAGIMA ©

Common Groupings So, brackets are a way of grouping values in a calculation: 4  (3 + 2) must be done first because the brackets are grouping that part of the calculation together Correct answer4  5 = 20 Here are some other common ones... ©

Common Groupings Use a fraction bar is grouped by the bar and must be done first Correct answer is grouped by the bar and must be done first Correct answer ©

Common Groupings Use a square root  2 is grouped by the root and must be done first Correct answer is grouped by the root and must be done first Correct answer ©

And so... Remember: *If things are on the same line, you must do them in the order they come! Grouping Indices Multiply   Divide* Add   Subtract* ©

End © Ciao for now! GIMAGIMA