LO: I can use column subtraction with an exchange.
Well done for completing the process for column subtraction remembering to start with the ones and follow the columns.
Today, we are moving onto the exchanging in subtraction. Watch the video to remind yourself of the process and remember the exchange is at the top for subtraction.
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