Adding Numbers

http://https://nrich.maths.org/1783 I’m thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number{...}

Factor Track .http://https://nrich.maths.org/7468 Age 7 to 14 Challenge Level Factor Track is not a race but a game of skill.{...}

Using 2D shapes follow the criteria to build a new 2D shape e.g can you use 4 squares to make{...}