Cubes representing numbers helps children to recognize numbers and their sequence. Understanding number operation ‘+’ (Plus) or ‘- ’ (Minus) sign is initially difficult for children. In number cubes we extend ‘one more’ concept to ‘putting together’ and subsequently addition. Similarly we extend ‘one less’ concept to ‘taking away’ and subsequently subtraction. This gradual progression leads to seamless understanding of concept. Learning Outcome : Identification of numbers, putting together (addition), taking away (subtraction).