This fun card game is designed to boost mental maths fluency in children from 5 years old. This play-based approach is ideal for use in the classroom to build number sense and confidence in early years maths concepts. Use this game to help children master number bonds 10, 20 and 100, and learn how to apply this knowledge to increasingly difficult addition and subtraction calculations. Play for 5-10 minutes a day and see the difference. This class set has 10 decks of 84 colour-coded playing cards (42 purple and 42 yellow) plus a colour-coded Phase Overview Objectives chart. Features multilingual packaging and guide.