We were doing addition within 20, 100 and some people even managed to work within 1000! We were adding up to the next 10, then the next 100 and then the next 1000. What will help everyone is to practise number bonds to 10 so that there can be quicker recollection of number facts.
We enjoyed playing 'buzz' to help us with our table facts too! Ask your child how to play it!
Working in small groups was very beneficial for children to be able to explain their thinking and to work out methods to find answers.