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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems that require you to find a unit rate.
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How To: Remember "greater than" & "less than" symbols

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How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

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

How To: Simplify fractions with variables in basic algebra

How To: Calculate Faster Than a Calculator

How To: Divide small numbers by big numbers

How To: Convert Fahrenheit to Celsius with a formula

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How To: Normalize a data set into another scale
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