General Math 9

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L to J Mr. Warneke's General Math 9 Spring 2012

absolute value

the distance of a number from 0 to a number line

addends

Numbers that are combined by the operation of addition.

angle

the figure formed by two rays that have the same endpoint.

area

the amount of surface that a plane figure covers

associative property of addition

changing the grouping of the addends does not change the sum

associative property of multiplication

changing the grouping of the factors does not change the product

average

the result of dividing the sum of two or more numbers by the number of addends

axes

one horizontal and vertical line used to display numerical facts in a graph

bar graph

A display of numerical facts in which the lengths of bars are used to compare numbers.

commission

An amount of money earned based on a percent of total sales

common denominator

fractions that have the same denominator

common factor

a number that is a factor of two or more numbers

common multiple

a number that is a mutliple of two or more given numbers

commutative property of addition

numbers that may be added in any order

commutative property of multiplication

numbers that may be multiplied in any order

composite number

a number that has more than two factors

compound interest

interest paid on the principal and on the interest previously earned.

data

a collection of numerical facts

decimal

the number written with a decimal point and digits to the right of the ones' place

deductions

amounts of money subtracted from a worker's earnings

degree

a unit of angle measure

denominator

the number on the bottom of the fraction

difference

the result of subtracting one number from another

digit

one of the symbols in our number system

discount

an amount of money subtracted from the regular price

distributive property

numbers inside a pair of parenthesis may be multiplied by a factor outside the parenthesis

dividend

a number that is divided by another number

divisible

a number is divisible by a second number if the remainder is zero when the first number is divided by the second

divisor

the number by which another number is divided

elapsed time

the amount of time between the start and the end of an event

equation

a statement that two numbers or quantities are equal

equivalent fractions

fractions that name the same number

evaluate

to find the value of a variable expression when the variables are replaced by given values

even number

a number that is divisible by 2

event

a set of outcomes

exponent

a number used to show how many times another number is to be used as a factor

exponential form

a short form of writing a multiplication in which all the factors are the same

factor

when one number is divisible by a second number

factors

numbers that are multiplied to give a product

formula

an equation that describes a relationship between two or more quantities

fraction

a number written in the form a/b

graph

a picture that displays and compares numerical facts

greatest common factor

the greatest number that is a factor of two or more numbers

gross pay

the sum of regular and overtime earnings

horizontal axis

a line that is parallel to the horizon

interest

money paid for the use of borrowed money

least common denominator

the least common multiple of the denominators of two or more fractions

least common multiple

the least positive number that is a multiple of two ore more nonzero numbers

lowest terms

a fraction is in lowest term if the greatest common factor of the numerator and the denominator is 1

mean

the sum of the items in a set of data divided by the number of items

median

the middle number of a set of data arranged in numerical order

mixed number

a number that consists of both a whole number and a fraction

mode

the number that appears most often in a set of data

multiple

when a number is multiplied by a nonzero whole number, the product is a multiple of the given number

negative numbers

numbers less than zero

net pay

a worker's earnings after deductions have been subtracted

numerator

the number on the top of a fraction

odds

the ratio of the number of favorable outcomes to the number of unfavorable outcomes of the event

odd number

a number that is not divisible by 2

parallel lines

lines in a plane that do not intersect

percent

a notation that represents a ratio that compares a number to 100

percent of increase or decrease

a percent comparing an amount of change to an original amount

place value

the value given to the place where digits appear in a number

positive numbers

numbers greater than zero

prime number

a whole number greater than 1 that has only itself and 1 as factors

principal

an amount of money that is borrowed

probability

the chance that an event will occur, calculated by finding the ratio of the number of favorable outcomes to the number of possible outcomes of the event

product

the result of multiplying two or more numbers

proportion

a statement that two ratios are equal

quotient

the result of dividing one number by another

range

the difference between the greatest number and the least number in a set of data

rate

a ratio that compares two unlike measures

ratio

a comparison of two numbers by division

reciprocals

two numbers whose product is 1

remainder

the whole number left after one number is divided by another

repeating decimal

a decimal in which a digit or block of digits repeats endlessly

scientific notation

a number written as the product of a power of 10 and a number that is at least 1 but less than 10

statistics

the branch of mathematics that deals with organizing and analyzing data

sum

the result of adding two or more numbers

unit price

the cost of a unit divided by the unit of measurement

variable

a letter or other symbol used to represent a number

vertical axis

a line that is going upward

whole numbers

the numbers 0, 1, 2, 3 and so on

x-axis

the horizontal number line in a coordinate plane

y-axis

the vertical number line in a coordinate plane

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