Mental Math January 17, 2018January 17, 2018 ~ The Hangry Hermit ~ Leave a comment Who doesn’t enjoy quizzing their Dad on math questions? Share this:Click to share on Tumblr (Opens in new window)Click to email this to a friend (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Like this:Like Loading...