Subtraction isn't always about taking something away. So why do we so often teach it that way?

Before we get into that, check out our free upcoming CPD sessions:

Informal Multiplication: https://www.twinkl.co.uk/l/w7xeg

Practical Techniques to Reduce Cognitive Load in Primary Maths: https://www.twinkl.co.uk/l/ij2cs

In this episode of The Primary Maths Podcast: Aftermaths, Jon and Becky explore the different meanings of subtraction, why children might find it harder than addition, and how we can help pupils become more flexible and confident mathematicians.

From taking away and finding missing parts to comparing quantities, they unpack the three structures of subtraction and explain why understanding the context of a problem matters far more than spotting keywords.

Along the way, they explore the difference between inverse and opposite, discover the history of the minus sign, revisit the shopkeeper's method of counting change, and even find out why computers often use addition to perform subtraction.

In this episode:

• Why subtraction might be harder than addition
• The three structures: reduction, partitioning and comparison
• Why 'more' doesn't always mean add
• The importance of representations and conceptual understanding
• Counting on as an efficient subtraction strategy
• Why choosing the right method matters more than mastering one procedure
• The surprising history of subtraction and its symbols

Because sometimes, the best way to solve a subtraction problem is not to subtract at all.

PlanIt Maths Scheme: https://www.twinkl.co.uk/l/1djqmc

Problem Solving: https://www.twinkl.co.uk/l/65mp5

The Primary Maths Podcast: Aftermaths — with Jon Cripwell and Becky Brown.