Game taken from [url=http://www.ascd.org/Publications/Books/Overview/Math-Fact-Fluency.aspx]Math Fact Fluency[/url] by Jennifer Bay-Williams and Gina Kling.[br]Icons made by [url=http://www.freepik.com/]Freepik[/url] from [url=https://www.flaticon.com/]www.flaticon.com[/url]