Hi guys! Halloween is coming and I am created for it this math challenge. In the game you must solve a math problem under one minute. So, Halloween Challenge test your imagination and mathematical ability. Hope you like it and please share, how much challenges you solved! Thank you! Download: https://play.google.com/store/apps/details?id=com.sekip.halloweenchallenge Video: https://www.youtube.com/watch?v=Tfa1V8xcMUw