Q. A while back you had multiplication tricks by 9’s in the Orange County Register. You were nice enough to e-mail me the information after I lost the column. I recently gave the information to my ...

Math isn't always about intricate procedures and drawn-out computations. These five smart multiplication strategies might help students improve their mental math abilities and solve problems more ...

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Calculators are awesome, but they’re not always handy. More to the point, no one wants to be seen reaching for the calculator on their mobile phone when it’s time to figure out a 15 percent gratuity.