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math vocabulary 2-9

proportion An equation stating that two ratios or rates are equivalent.
origin The point of intersection of the x-axis and the y-axis in a coordinate system.
algebra A mathematical language that uses symbols, usually letters, along with numbers. The letters stand for unknown numbers.
area The number of square units needed to cover the enclosed (inside) surface.
equation A mathematical sentence that contains an equal (=) sign.
mean The sum of the numbers in a set of data divided by the number of pieces of data.
radius The distance from the center of the circle to any point on the circle.
yard A customary unit of length equal to 3 feet, or 36 inches.
order of operations The rules that tell which operation to preform first when more than one operation is used (PEMDAS).
diameter The distance across a circle through the center.
rhombus A parallelogram with all sides congruent.
quadrent One of the four regions in a coordinate plane separated by an x-axis and y-axis.
mode The numbers or items that appear most often in a set of data.
perimeter The distance around
exponent In a power, the number of times the base is used as a factor.
variable A symbol, usually a letter, used to represent a number.
percent A ratio that compares a number to 100.
circumference The distance around a circle.
foot A customary unit of length equal to 12 inches.
median The middle number in a set of data when the data are arranged in numerical order.
equivalent Having the same value...for instance, fractions that have the same number(1/2)or(2 1/2).
mixed number The sum of a whole number and a fraction...for instance 1 1/2, 2 1/2.
reciprocals Any two numbers that have a product of 1......(flip flops).
chord A segment with endpoints that are on a circle.
obtuse angle An angle that measures greater than 90 degrees, but less than 180 degrees.
ratio A comparison of two quantities by division... for instance, 3:4 or 3/4.
decimals Numbers that have digits in the tenths, hundredths, thousandths place and beyond.
outlier A value that is much higher or much lower than the other values in a set of data.
improper fraction A fraction that has a numerator that is greater than or equal to the denominator.
ordered pair A pair of numbers used to locate a point in the coordinate system; example, (-5, 14).
Created by: petermanl05