Hot Math Posts

How To: Multiply large numbers

This video demonstrates, without narration, a trick to multiplying large numbers. To do the trick, just draw a diagonal line for every unit in the number and add up the number of times the lines cross.

How To: Find the area of a rectangle easily

This tutorial instructs how to calculate the exact area of a rectangle. This tutorial will be very handy for parents, it will help you be able to rescue your children from the homework pit. Find the area of a rectangle easily.

How To: Compute derivatives

Learn how to compute derviatives from this web channel devoted to educational shows and resources for schools. Annenberg Media brings you an interesting lecture that combines history and math. Compute derivatives.

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