Put your math skills to the test and challenge other players online! increase your elo rating by winning ranked games or practice by playing friendly unranked games. elo rank represents your online skill level. you can also collect stars and gain experience points (xp) by practicing offline. - addition, subtraction, multiplication, division, geometry & problem solving. - 4 difficulties. youtube: http://www.youtube.com/watch?v=1jhbxthaqiy math challenge is part of the numfun series containing maths games that covers different subjects.
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