You are already math master if you know the expression related to the ratio in the elementary school

Bard game b-bing is a game that can learn the expressions of various ratios that are covered in the elementary courses. 

You can win the game by interfering the ratio opponents collect and completing the ratio I collect. 

astonishing game that increase your concentrations as well as teaches you the expression related to raion, explore the world of ration with B-bingo~

This game was created by collection all the expression of comparisons such as ratio, proportin, percentage and prime numbers and divion that are core concepts of elementary math. It may give kids an opportunity to think math newly with the combination of fun composition of game and important concept of elementary math. 

Please look for the games of school of the numbers, fun board games related to math!