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June 28, 2010Mental Math - Ep9 - Square Numbers in the 50s5 minutesPlayMathTutorDVD.com explains how to rapidly square any number in the 50s!...moreShareView all episodesBy nerfherderJune 28, 2010Mental Math - Ep9 - Square Numbers in the 50s5 minutesPlayMathTutorDVD.com explains how to rapidly square any number in the 50s!...more
June 28, 2010Mental Math - Ep9 - Square Numbers in the 50s5 minutesPlayMathTutorDVD.com explains how to rapidly square any number in the 50s!...more