What’s two minus three? It’s “blast off”! How do you know? Just count backwards : Two, One, Zero, Blast Off!

What’s two minus three? It’s “blast off”! How do you know? Just count backwards : Two, One, Zero, Blast Off!

http://www.dr-mikes-math-games-for-kids.com/blog/2012/05/two-one-zero-blast-off-or-how-to-teach-subtraction/

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