数学のワークアウト - ゲーム（無料） [Android]

https://play.google.com/store/apps/details?id=andrei.brusentcov.survivalmath
Math games are cool and addictive. This game is for smart ones -)
Improve your math skills!
Do you think that you are really good at mathematics?
Check it out with this amazing programm.
This is the best math trainer.
All exercises are absolutely random. You can't predict the answer without solving a math problem. Difficulty grows slowly. But even very clever adult will find his weaknesses after playing this game for an hour. Everyone need to train mathematical skills. Keep your brain sharp and do it in a fun way!
Game has 4 modes EASY, MEDIUM, HARD & SURVIVAL.
Survival mode is timed mode. But every right answer gives you more time to live.
It is a great brain exercise, math workout, mental workout, mathematics game, game for adults, game for children and family game. If you love to play card games, or tile games like scrabble, mahjong, dominoes; or strategy games like checkers and chess, you will love to play this fun math game.
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Android Game Math Workout