More addition of multiples of 100

We are often asked what it means for children to put their knowledge into practice to solve problems. This page is an excellent example of this. If children know,off by heart, addition of two single digit numbers (e.g. 4 + 5 = 9) then they should find it easy to use this knowledge to work out addition of multiples of 100 (e.g. 400 + 500). If they know these facts they will whizz through these pages in no time. However, many children in Year 3 have never reached the point where they can say that they know the answers to adding any two single digit numbers and if this is the case they could spend quite a lot of time completing the sheet.

Look out for the one ‘red herring’ where the question could be misinterpreted:

‘What number added to 300 makes 1000?’

Watch out for children who add 300 and 1000 to make 1300.

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