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integers

QuestionAnswer
Integers The whole numbers and their opposites form the set of integers
Opposites Opposites are two integers the same distance from zero on a number line, but in opposite directions
Absolute Value The absolute value of an integer is the distance from zero on a number line
= is equal to
< is less than
> is greater than
Sum answer in an addition problem
Difference the answer in a subtraction problem
Product the answer in a multiplication problem
Quotient The answer in an division problem
Adding two integers with the same sign Add the absolute values of the integers. The sum has the same sign as the addends
Adding two integers with different signs Find the difference (of the absolute value of the addends). The sum has the sign of the integer with the greatest value.
Subtracting integers Add its opposite
Multiplying integers with the same sign Find the product and give it a positive sign
Multiplying integers with different signs Find the product. The product of different signs is always negative
Dividing integers with same signs The quotient of two integers with the same sign is positive
Dividing integers with different signs The quotient of two integers with different signs is negative
What is the mean? The mean is the average you see most ofter
Finding the mean 1. Find the sum of the numbers 2. Divide the sum by the number of items
Variable is a symbol (usually a letter) that stands for a number
Variable expression is an expression (number sentence) that contains at least one variable
Grouping symbols (Parentheses) [brackets] and Iabsolute valueI
Order of Operations PEMDAS: Parenthesis, exponents,Multiply, Divide, Add. Subtract
From which direction do you work a problem Left to Right, from the inside out
Factor the numbers you are multiplying to get a product
Divisibility Test short cuts for finding factors of whole numbers
A number is divisible by 2 if... the last digit is an even number
A number is divisible by 3 if... the digits add up to 3,6,or 9
A number is divisible by 5 if... the last digit is 0 or 5
A number is divisible by 10 if ... the last digit is 0
Prime number a whole number greater than 1 that has only 1 and itself as factors
Composite number A whole number greater than 1 that has at least one factor besides itself and 1
Prime Factorization Every composite number can be expressed as a product of only prime numbers
Base number a base number is a number used as a factor
Exponent is the number of times the base number is used as a factor
Power is a number that can be writted using an exponent
kristi dewey
Created by: kdewey