This wonderfully named Year 3 Add 1s across a 10 activity will provide children with the opportunity to practise adding 3-digit numbers and 2-digit numbers, focussing on the main skill of adding 1s across a 10. The resource comes in the form of a game which a group can use either in class or part of an intervention group. There is a list of required resources and a set of instructions to ensure that the game can be easily led by a supporting adult.