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FOA 2 Unit 2
Integers and Absolute Value
Question | Answer |
---|---|
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 |