# How to Add & Subtract Inequalities?

Inequalities are mathematical expressions that use "", "=" symbols instead of "=." Inequalities work very similarly to equalities in most cases. The signs indicate the direction of the inequality. ...
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http://www.ehow.com/how_8190469_add-subtract-inequalities.html

## How to Subtract?

Subtraction is a simple mathematical operation that determines the difference between two numbers. Subtract smaller numbers mentally or use a pen and paper or electronic device for more complicated...
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http://www.ehow.com/how_8268249_subtract.html

## How to Add and Subtract Matrices?

Adding and subtracting matrices is as easy as adding and subtracting "ordinary" numbers.

http://www.wikihow.com/Add-and-Subtract-Matrices

## How to Add and Subtract Integers?

An "integer" is just a fancy way of saying "a number (not a partial number like, 1/2 or 2.7), that can be positive, negative, or zero." Examples of integers: 3, -12, 17, 0, 7000, -582, etc. Example...
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http://www.wikihow.com/Add-and-Subtract-Integers

## How to Subtract Powers?

In math, powers are a part of exponents, usually appearing in superscript in the upper right hand corner of the exponent, that represent the number of times a base is multiplied by itself. When sub...
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http://www.ehow.com/how_8439361_subtract-powers.html