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Essential Vocab 7th grade

Essential vocabulary for 7th grade math

AB
Absolute ValueThe distance of a number from zero on a number line
Box and Whisker PlotA graph that displays the highest and lowest quarters of data as whiskers, the middle two quarters of the data as a box, and the median
CoefficientThe number that is multiplied by a variable in an algebraic expression
ConstantA value that does not change
Corresponding AnglesMatching angles of two or more polygons
Corresponding SidesMatching sides of two or more polygons
Cross-sectionthe intersection of a figure in 2-dimensional space with a line, or of a body in 3-dimensional space with a plane
cubic unitVolume of the solids is measured in?
cumulative frequency tableThe sum of successive data items listed according to the number of times the item occurs
function tableA table of ordered pairs that represent solutions of a function
inequalityA mathematical sentence that shows the relationship between quantities that are not equivalent
integerThe set of whole numbers and their opposites
interestThe amount of money charged for borrowing or using money, or the amount of money earned by saving money
interquartile rangeThe difference between the upper and lower quartiles in a box-and-whisker plot
inverse operationsOperations that undo each other;
lower extremeThe least number in a set of data
meanThe sum of the items in a set of data divided by the number of items in the set; also called the average
netAn arrangement of two-dimensional figures that can be folded to form a polyhedron
outlierA value much greater or much less than the others in a data set
percent of changeThe amount stated as a percent that a number increases or decreases
perfect squareA square of a whole number, 49, 25, 81
principleThe initial amount of money borrowed or saved
quartileThree values, one of which is the median, that divide a data set into fourths
scale factorThe ratio used to enlarge or reduce similar figures
similarFigures with the same shape but not necessarily the same size
surface areaThe sum of the area of the faces, of a three dimensional figure
unit rateA rate in which the second quantity in the comparison is one unit
upper extremeThe greatest number in a set of data
volumeThe number of cubic units needed to fill a given space


Mrs. Shepherd

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