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## Instant Pre-Algebra Homework Help

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#### Absolute Value

The absolute value |x| of a real number x is the non-negative value of x without regard to its sign.

#### Measurement

Calculate the size, length, time, or volume of something, as established by a the action of measuring.

#### Fractions

A fraction is a real number needed for measuring rather than counting that is not a whole number – e.g., 1/2

#### Arithmetic

The study of numbers — addition, subtraction, multiplication and division.

#### Ratios

A relationship between two numbers indicating how many times the first number contains the second.

#### Negative Numbers

A negative number is a real number that is less than zero. Negative numbers represent opposites.

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