Mental Math Secrets - Your Secret Weapon for Success
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Mental Math - Ep8 - Square Numbers Ending in 5
8 minutes
Posted Jun 21, 2010 at 10:00 pm.
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In this lesson we learn how to mentally square any number ending in 5.
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Mental Math - Ep7 - Rapidly Multiply 2-Digit Numbers
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Mental Math - Ep9 - Square Numbers in the 50s
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