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Square Root Cannon  
Common Core Math Alignment: 8.NS.2. Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions.
Press and Hold UP and DOWN to rotate cannon Press and Hold LEFT and RIGHT to aim missile while it's in the air This work is licensed under a Creative Commons AttributionNonCommercialNoDerivs 3.0 Unported License. 
