Online play free cool math apocalypse game

Online math apocalypse is an interesting and very joyable game for kids. The kids who like to fight with alien must play this game. In this game the earth is attacked by the alien and we have to save the earth by encountering the aliens. The aliens are killed by adding subtracting and multiplying different figures to obtain the right answer. One alien is die by your 1 right answer. I hope you really like this game.