Words for students from kindergarten to grade 8, each grade has 4 lists: art, math, science, and social. They are essential vocabulary for elementary academic classes.

**Grade 6: Word List - Math**

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Grade and Subject |

base number

the number that is going to be raised to a power

circumference boundary line of a circle, figure, area, or object

complement complete; consummate; make perfect

convert change something into another form; transform

coordinate plane coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates

diameter length of straight line passing through the center of a circle and connecting two points on the circumference

evaluate judge; examine and judge carefully; appraise

factorization the resolution of an entity into factors such that when multiplied together they give the original entity

non-terminating decimal a decimal numeral that does not terminate in an infinite sequence

numerical expression combines numbers, variables, or constants using operators

pi the ratio of a circle's circumference to its diameter; equal to 3.14159265358979323846...

plane figure a two-dimensional shape

prime factor the prime factors of a quantity are all of the prime quantities that will exactly divide the given quantity

radius right line drawn or extending from the center of a circle to the periphery

reciprocal concerning each of two or more persons or things; exchangeable; interacting

sequences the action of following in order; serial arrangement in which things follow in logical order or a recurrent pattern

similarity the quality of being similar

simplify make simple; make less complex; make clear by giving the explanation for

square units unit used to measure area

substitution the act of putting one thing or person in the place of another; an event in which one thing is substituted for another

supplement add as something seems insufficient; complement; extension; addition

terminating decimal a number that stops dividing after a number of decimal points and is as a result a rational number