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St Joseph'sCatholic Primary & Nursery School


LO: I can use column subtraction with more than one exchange.


Hopefully, you remembered the exchange yesterday and are ready to move onto more than one exchange. If you are not sure then carry on practising with one for now.

If you are ready then today we are doing more than one exchange.

Again, there is challenge 1, 2 and 3, you need to choose one of the challenges. Year 3 you should aim for Challenge 1 and 2 unless you want to challenge yourself then you could try challenge 3 after challenge 2.


Top tips for Column Subtraction

  • Put the HTOs at the top.
  • Make sure you follow down the columns.
  • Always start with the ones column.
  • Use your hundreds, tens and ones pictorial representations to help you.

Gracie and Amelia Explaining Column Subtraction

Still image for this video
Gracie and Amelia explain the process very clearly - thank you ladies.

Interactive practical Place Value Counters