Want to know how to find percentages quickly without the use of a calculator? It's easy. This free video math lesson will show you how it's done. From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test).
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How To: Remember "greater than" & "less than" symbols

How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Find the area & perimeter of triangles & squares

How To: Find a slope of a line parallel/perpendicular to it

How To: Find the Percent Given Two Numbers

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate the area of a parallelogram

How To: Write a logarithm as a sum or difference of logarithms

How To: Calculate percent composition for chemistry

How To: Write a slopeintercept equation given an XY table

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle

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How To: Solve nonlinear systems of equations by graphing

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