12 Useful Math Hacks That They Didn’t Teach You In School

How To Multiply Large Numbers In Your Head

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3. How To Multiply By 11
Finally! How To Remember Which Sign Is Greater Than and Which Is Less Than

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12. How to Add And Subtract Fractions
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8. How To Find Fractions Of Whole Numbers
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6. via WonderHowTo
4. Here is video demonstrating:

Still don’t have it? How To Convert Fahrenheit to Celsius
As if it was this simple all along…

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2. I can now multiply more than single digits by 11 in my head. How To Use Your Hands For 5, 6, and 9 Times Tables

10. Check out these amazing math tips and you’ll agree! How To Figure Out Percentages
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11. How To Figure Out Multiples Of Nine

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Updated: 14 ноября, 2014 — 5:57 дп