What is a Rational Number? https://www.youtube.com/watch?list=PLmdFyQYShrjez5JHYWDwIUWX4DMDyQqTq&v=SQ4cB9yXkHMA rational number is a number which can be put in the form , where p and q are both integers and q ≠ 0. p is called numerator (Nr) and q is called denominator (Dr).You can also go … [Read more...] about What is a Rational Number?

# Pre Algebra

## Common Factors

Common Factors When two integers are multiplied together, the answer is called a product. The integers that were multiplied together are called the factors of the product. 3 • 6 = 18 (3 and 6 are factors of 18)The greatest common factor of two (or more) integers is the largest integer that is a factor of both (or all) numbers.Consider the numbers 18, 24, and … [Read more...] about Common Factors

## Absolute Value

Absolute Value The absolute value of a number can be considered as the distance between 0 and that number on the real number line.Remember that distance is always a positive quantity (or zero). The distance in the diagram below from -3 to 0 is 3 units. These units are never negative values.Read More:Absolute Value Equations Absolute Value … [Read more...] about Absolute Value

## Converting To and From Scientific Notation

Converting To and From Scientific Notation Converting To Scientific Notation To Change from Standard Form to Scientific Notation:Place the decimal point such that there is one non-zero digit to the left of the decimal point. Count the number of decimal places the decimal has "moved" from the original number. This will be the exponent of the 10. If the original … [Read more...] about Converting To and From Scientific Notation

## Arithmetic Sequences and Series

Arithmetic Sequences and Series A sequence is an ordered list of numbers. The sum of the terms of a sequence is called a series.Read More:What is the pattern of numbers? SequencesWhile some sequences are simply random values, other sequences have a definite pattern that is used to arrive at the sequence's terms. Two such sequences are the arithmetic … [Read more...] about Arithmetic Sequences and Series