Addition, subtraction, multiplication and division. These are number operations.
Here's a fun web game aI found that will teach operations while having fun.
http://www.bbc.co.uk/schools/starship/maths/games/cross_the_swamp/small_sound/standard.shtml
Here's a fun web game aI found that will teach operations while having fun.
http://www.bbc.co.uk/schools/starship/maths/games/cross_the_swamp/small_sound/standard.shtml