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 Flashcards Matching Hangman Crossword Type In Quiz Test StudyStack Study Table Bug Match Hungry Bug Unscramble Chopped Targets

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# Chapter 2

negative number a number less than 0
integer a whole number or its opposite, including 0. Not including the fractions inbetween
real number all numbers on the number line, including positives, negatives, 0, fractions and decimals.
signed number numbers presented as a negative or positive.
addictive inverses two numbers that add up to 0. (-3 + 3)
absolute value the distance of a number from the origin line; the number itself or the opposite of the number, whichever is positive or 0.
positive number a number greater than 0
subtraction adding its opposite (x - y = x + (-y)
multiplication property of negative one -1 times a number equals the opposite of that number. that is for any real number x. (-1 x X = -x)
multiplicative inverse reciprocal two non-zero numbers are multiplicative inverses or reciprocals of eachother if their product equals 1. (2/3 & 3/2 are reciprocals because multiplied together equals 1) 0 has no reciprocal.
dividing multiplying by its reciprocal, that is for any real numbers. (x/y = X x 1/y)
commute to commute two numbers in an expression means to interchange their positions.
commuting terms and factors x + y = y + x X x Y = Y x X
binary addition and subtration. numbers are added or multiplied only two at a time. ex. 3+5+9 (3+5)+9 = 3+(5+9)
associate group two numbers in parentheses (without changing position) so that the operation between them is done first.
associating terms and factors you can associate any 2 factors in a product.
distance formula d=rt
Created by: mphilbrick