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 finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve problems requiring you to round whole numbers.
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How To: Remember "greater than" & "less than" symbols

How To: Find the standard deviation with the ZScore formula

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

How To: Find the Percent Given Two Numbers

How To: Find the 100th term in a sequence

How To: Use a TI89 to calculate nCr

How To: Use a mean and scatter plot for Statistics

How To: Graph half an ellipse

How To: Write a slopeintercept equation given an XY table

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find and sketch the domain of a multivariable function

How To: Determine the age of a fossil using carbon14

How To: Use the ratio formula to find coordinates of a point

How To: Find the equation of a circle given: center & tangent

How To: Calculate probability in "at least one" problems

How To: Solve word problems involving domain and range

How To: Find a missing side of a triangle, similar to another

How To: Interpret a standard deviation

How To: Calculate math without a calculator

How To: Evaluate factorials with a TI83 calculator

How To: Remember "greater than" & "less than" symbols

How To: Find the standard deviation with the ZScore formula

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

How To: Find the Percent Given Two Numbers

How To: Find the 100th term in a sequence

How To: Use a TI89 to calculate nCr

How To: Use a mean and scatter plot for Statistics

How To: Graph half an ellipse

How To: Write a slopeintercept equation given an XY table

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find and sketch the domain of a multivariable function

How To: Determine the age of a fossil using carbon14

How To: Use the ratio formula to find coordinates of a point

How To: Find the equation of a circle given: center & tangent

How To: Calculate probability in "at least one" problems

How To: Solve word problems involving domain and range

How To: Find a missing side of a triangle, similar to another

How To: Interpret a standard deviation

How To: Calculate math without a calculator

How To: Evaluate factorials with a TI83 calculator
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