Addition Challenge Math Game Posted by jshart 3 years ago About Embed Math game for practicing addition skills and strategies to build math efficiency. centre for success, math, Specialized services, strategies <iframe class="wp-block-mexp-vimeo hwdsb-tv" src="//hwdsb.tv/media/addition-challenge-math-game-2/?embed=true" width="560" height="315" frameborder="0" allowfullscreen></iframe>