Positive Number
Any number greater than zero
Negative Number
Any number less than zero
Whole Number
Any "counting number" or zero
Integer
The whole numbers and their opposites
Even Number
Any integer divisible by 2
Odd Number
Any integer not divisible by 2
Sum
The result of two numbers being added
Difference
The result of one number being subtracted by another
Product
The result of two numbers being multiplied
Quotient
The result of one number being divided by another
Factor
A number that is multiplied to form the product
Greatest Common Factor
The greatest whole number that is a factor of two or more numbers
Multiples
The product of a number and a counting number
Least Common Multiple
The least whole number that is a multiple of two or more numbers
Prime
A number greater than one whose only whole number factors are one and itself
Composite
A number greater than one with more than two whole number factors
Real
All positive and negative numbers and zero
Rational
Any number that can be expressed as the quotient of two integers
Irrational
Real numbers that are not rational
How to find Percent Increase or Decrease
Difference/Original = Percent Increase or Decrease
Exponents and Roots
pg. 33
Logarithms
pg. 35
Average Problems
Average x Number = Total
Simple Probability Problems
Outcomes giving desired result/Total possible outcomes
Conditional Probability
The probability of an event, given another event has already occurred. Ex: The probability that a playing card from a standard deck is a 5, given that it is red, is 2/26.
Joint Probability
The probability of two events occurring at the same time.Ex: The probability that a playing card from a standard deck is red and a 5 is 2/52.