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# math vocabulary 1st

An equation stating that two ratios or rates are equivalent. proportion
The point of intersection of the x-axis and the y-axis in a coordinate system. origin
A mathematical language that uses symbols, using letters, along with number. The letters stand for unknown numbers. algebra
The number of square units needed to cover the enclosed (inside) surface. area
A mathematical sentence that contains an equal (=) sign. equation
The sum of the numbers in a set of data divided by the number of pieces of data. mean
The distance from the center of the circle to any point of a circle. radius
A customary unit of length equal to three feet, of 36 inches. yard
The rules that tells witch operation to use first when more than one operation is used (pemdas). order of operations
The distance across a circle through the center. diameter
A parallelogram with all sides congruent. Rhombus
One of the four regions in a coordinate plane separated by an x-axis and a y-axis quadrant
The numbers or items that appear most often in a set of data. mode
In a power, the number of times the based is used as a factor. exponet
A symbol, usually a letter, used to represent a number. variable
A ratio that compares a number to 100. percent
The distance around a circle. circumference
A customary unit of length equal to 12 inches. foot
The middle number is a set of data when the data are arranged in numerical order. if the data has an even number, the two middle numbers are added together then divided by 2. median
Having the same value ........ for instance, fractions that have the same number. equivalent
The sum of a whole number and a fraction. mixed number
Any two numbers that have the product of one. reciprocals
A segment with endpoints that are on a circle. chord
An angle that measures greater than 90 degrees, but more than 180 degrees. obtuse angle
A comparison of two qualities by division. ratio
Numbers that have digits in the tenths, hundredths, and thousandths place and beyond. decimals
A value that is much higher or much lower that the other values in a set of data. outlier
A fraction that has a numerator that is greater than equal to the denominator. improper fraction
A pair of number used to locate a point in the coordinate system. ordered pair
Created by: simsm2580

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