Find the number or expression that is not like the others. Practice basic facts. Think with patterns. Have fun!
HOW TO PLAY Select Level: 1, 2 or 3 Each Game has 5 Puzzles Each Puzzle has up to 2 points 
LEVELS Level 1: Number properties Level 2: Patterns in addition and subtraction Level 3: Patterns in multiplication and division 
By George Gadanidis & Chris Yiu. Development, research and outreach support from ORFRE & SSHRC. With thanks to Jerome Bruner and his work on Concept Formation (understanding that different concepts have different attributes) and Concept Attainment (understanding how the attributes determine what belongs and what does not).
