# How to Square Numbers in Your Head?

Almost everyone owns a mobile phone with a calculator function in 2011, which makes multiplication a breeze. However, if you are want to get mental exercise, build memory power or want to impress y...
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http://www.ehow.com/how_8160851_square-numbers-head.html

## How to Square Numbers in the Fifties in Your Head?

This is a handy maths trick for squaring any number in the fifties without a calculator.

http://www.wikihow.com/Square-Numbers-in-the-Fifties-in-Your-Head

## How to Square Numbers Ending 5 in Your Head?

Squaring large numbers can be a huge chore. Even worse, you might not be allowed to use a calculator!Well, you can save time by squaring numbers ending in 5 (i.e. the number 5 in the ones place) an...
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http://www.wikihow.com/Square-Numbers-Ending-5-in-Your-Head

## How to Square Numbers Ending in 5?

Find out the square of any number ending in "5" such as 15,25,35 etc... in two easy steps.

http://www.wikihow.com/Square-Numbers-Ending-in-5

## How to Square Two Digit Numbers That End with Five?

This is a neat math trick. However it only works with two digit numbers whose ones digit is 5.

http://www.wikihow.com/Square-Two-Digit-Numbers-That-End-with-Five