Question

Do you know of any fun math sites where you can practice functions on integers(whole numbers and negatives) for free?

Answer 1

Khan Academy is good. :)

Answer 2

practice functions on integers? what do you mean?

are you referring to regressions?

Answer 3

Sorry for the delay, thanks for your answers. I thought about khan and brilliant, but they just don't have enough 'game' to them. Nothing that complicated jdoe. I need something fun because I have 9th graders who still find it difficult to add, subtract, multiply, and divide without a calculator.

Answer 4

http://www.funbrain.com/math/

and

http://www.mathplayground.com/games.html

might be something they may like @FibonacciChick666

Answer 5

Thanks! I'm going to check those out