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FOA 2 Unit 2

Integers and Absolute Value

What are integers? the set of all whole numbers and their opposites
What are positive integers? all whole numbers to the right of zero (no "parts" -- no fractions or decimals)
What are negative integers? all whole numbers to the left of zero (no "parts" -- no fractions or decimals)
Is zero positive or negative? neither. zero is not positive nor negative
What is absolute value? the distance a number is from zero ** distance is always positive **
What is a "zero pair"? a positive and its negative that equals zero
How do I add integers? 1) Decide: Same sign sum (add) or Different signs substract 2) Take the sign of the number with the greater absolute value
How do I substract integers? 1) Add the opposite (Keep Flip Change) 2) Follow the addition rules
How do I multiply or divide integers? 1) Multiply or divide like normal, ignoring the signs 2) Place the sign: same signs -> positive; different signs -> negative
What is the Order of Operations? (definition) The order used the evaluate expressions with more than one operator
List the Order of Operations 1) Parentheses (any groupings, including absolute value symbol, division bar, and brackets) 2) Exponents 3) Multiplication and Division, from left to right 4) Addition and Subtraction, from left to right
Created by: MrsCMath7