7Boom Free电脑版

----->> What is <<-----7Boom is a game that will put to the test your mathematical and concentration skills.----->> Version <<-----This is the free versione of the game, it is possible to play only with number 7.----->> How to play <<-----The goal is to reach the number 61 within two minutes.You have to press the button "BOOM!" every time that the displayed number: - contains the number 7 - is a multiple of 7 - is composed by digits that summed or subtracted are equal to 7But beware!! Pushing a wrong button, the counter is halved..Good Luck!Gighen