Category Archives: Mathematics

Squaring numbers more than 100

Posted on October 24, 2008 by Selinap

An easy way to find the square of number that is more than 100. Continue reading →

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Squaring numbers between 51 and 100

Posted on October 23, 2008 by Selinap

An easy way to find the square of number that falls in range of 51 and 100. Continue reading →

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Squaring numbers that end in 5

Posted on October 22, 2008 by Selinap

You know that 5 x 5 = 25. However, do you realize that the square of any number that ends with 5, will also contains 25 in the last 2 digits. If you are new here, you might want to … Continue reading →

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Multiply a number by 11

Posted on September 11, 2008 by Selinap

An easy way to multiply any greater than 2 digits number by 11. Continue reading →

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Learn Calculus in 20 minutes

Posted on August 28, 2008 by Selinap

Two videos by Professor Edward Burger of Williams College teaching Calculus in 20 minutes. Continue reading →

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