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6th Grade Math Vocabulary

Terms in this set (150)

Add
Putting numbers together for a bigger number.
Addend
One of two or more numbers that are added to find a sum.
Sum
The result of addition.
Difference
The result of subtrction.
FactFamily
A group of three numbers related by addition and subtraction or by multiplication and division.
Inverse Operation
Operations that"undo" one another.
Minuend
A number from which another number is subtracted.
Subtrahend
A number that is subtracted.
Factors
One of two or more numbers that are multiplied.
Product
The result of multiplication.
Quotient
The result of division.
Dividend
A number that is divided.
Divisor
A number by which another number is divided.
Remainder
An amount left after division.
Fraction
A number that names part of a whole.
Denominator
The bottom term of a fraction.
Numerator
The top term of a fraction.
Segment
A part of a line with two distinct endpoints.
End Points
A point at which a segment ends.
Ray
A part of a line that begins at a point and continues without end in one direction.
Line
A straight collection of points extending in opposite directions without end.
Metric System
An international system of measurement based on multiples of ten. Also called International System.
U.S. Customary System
A system of measurement used almost ecclusively in the United States.
Perimeter
The distance around a closed, flat shape.
Number Line
A line for representing and graphing numbers. Each point on the line corresponds to a number.
Counting Numbers
Then numbers used to count; the members of the set (1, 2, 3, 4, 5, ...). Also called natural numbers,
Whole Numbers
The members of the set (0, 1, 2, 3, 4, ...).
Negative Numbers
Numbers less than zero.
Compare
To compare two numbers.
Equal Sign
A sign in a problem that says that the numbers are equal to the number or variable that come after the equal sign.
Greater Than/Less Than
Two signs that would show that a number was larger or smaller than another number.
Sequence
A list of numbers arranged according to a certain rule.
Even Numbers
Numbers that can be divided without a remainder; the members of the set(.., -4, -2, 0, 2, 4, ...).
Odd Numbers
Numbers that have a remainder of one when divided by two; members of the set (..., -3, -1, 1, 3, ...).
Fahrenheit Scales
A scale used used on some thermometers to measure temperature.F
Celsius Scales
A scale used used on some thermometers to measure temperature.C
Scale
A ratio that shows the relatioship between a scale drawing or model and the actual object.
Graph
A diagram, such as a bar graph, a circle graph (pie chart), or a line graph, that displays quantative information.
Histogram
A method of displaying a range of data. A histogram is a special type of graph that displays dat in intervals of equal size with no space between bars.
Frequency Table
A way of pairing selected data with the number of times the selected data appears.
Survey
A method of collecting data about a particular population.
Closed option Survey
A survey in which the options are limited.
Open Option Survey
A survey in which the options are not limited.
Place Value
The value of a digit based on its position within a number.
Operations of Arithmetic
The four basic mathmatical operations: addition, subtraction, multiplication, division.
Positive Numbers
Numbers greater than zero.
Opposites
Two numbers whose sum is zero.
Integers
The set of counting numbers, their opposites, and zero; the members of the set (..., -2, -1. 0, 1, 2, ...).
Round
To round means to round a number up to the highest number possible.
Estimate
To detrmine an approximate value.
Mixed Numbers
A whole number and a fraction together.
Average
The number found when the sum of two or more numbers is divided by the number of addends in the sum. Also called mean.
Line Graph
A graph that shows the data for one thing over a period of time.
Prime
A counting number greater that 1 whose only two factors are one and it self.
Factor
One of two or more numbers that are multiplied.
Divisible
Able to be divided by a whole number without a remainder.
Multiples
A product of a counting number and another number.
GCF
The largest whole number that is a factor of two or more given numbers.
Reduce
To rewrite a fraction in lowest terms.
Improper Fraction
A fraction with a numerator equal to or greater than the denominator.
Ratio
A comparison of two numbers by division.
Circumference
The perimeter of a circle.
Diameter
The distance across a circle through its center.
Radius
The distance from the center of a circle to a point on the circle.
Plane
A flat surface that has no boundaries.
Parallel
Lines in the same plane that do not intersect.
Perpendicular
Two lines that intersect at right angles.
Intersect
To share a point or points.
Oblique
A line that is neither horizontal nor vertical.
Right Angle
An angle that forms a square corner and measures 90 degrees. It is often marked with a small square.
Acute Angle
A triangle whose largest angle measures more than 0 degrees but is less than 90 degrees.
Obtse Angle
An angle whose measure is more than 90 degrees and less than 180 degrees.
Vertex
A point of an angle, polygon, or polyhedron where two or more lines, rays, or segments meet.
LCM
The smallest whole number that is a multiple of two or more given numbers.
Reciprocal
Two numbers whose product is one.
Degree
A unit for measuring angles.
Area
The number of square units needed to cover a surface.
Expanded Notation
A way of writing a number as the sum of the roducts if the digits and the place values of the digits.
Percent
A fraction whose denominator of 100 is expressed as a percent sign.
Decimal Places
Places to the right of a decimal point.
Tenths Place
The tens place in a decimal number.
Exponent
The upper number in an exponential expression; it shows how many times the base is used as a factor the number of times shown by the exponent.
Base
A designated side or face of a geometric figure.
Square Root
One of two equal factors of a number.
Perfect Square
The product when a whole number is multiplied by itself.
Sales Tax
The tax charged on the sale of an item based upon the items purchase price.
Equivalent Fractions
Different fractions that name the same amount.
Pi
The number of diameters equal to the circumference of a circle.
Mean
Average.
Median
The middle number (or the average of the two ventral numbers) of a list of data when the numbers are arranged in order from the least to the greatest.
Mode
The number or numbers that appear the most often in a list of data.
Bimodel
Having two models.
Range
The difference between the largest number and smallest number in a list.
Circle Graph
A method of displaying data, often used to show information about percentages or parts of a whole. A circle graph is made of a circle divided into sectors.
Line Plot
A method of plotting a set of numbers by placing a mark above anumber on a number line each time it occurs in the set.
Pictograph
A method of displaying data that involves using pictures to represent the data being counted.
Stem-and-leaf-Plot
A method of graphing a collection of numbers by placing the "stem" digits (or initial digits) in one column and the "leaf" digits (or remaining digits) out to the right.
Probability
A way of describing the likelihood of an event; the ratio of favorable outcomes to all possible outcomes.
Chance
A way of expressing the likelihood of an event; the probability of an event expressed as a percentage.
Polygons
A closed, flat shape with straight sides.
Quadrilateral
Any four-sided polygon.
Regular Polygon
A polygon in which all sides have equal lengths and all angles have equal measures.
Congruent
Having the same size and shape.
Side
A line segment that is part of a polygon.
Triangular Prism
A prism that is shaped like a triangle at the ends.
Edge
A line segment formed where two faces of a polyhedron intersect.
Face
A flat surface of a geometric solid.
Polyhedron
A geometric figure whose faces are polygons.
Surface Area
The total area of the surface of a geometric solid.
Volume
The amount of space a solid shape occupies. Volume is measured in cubic units.
Parallelogram
A quadrilateral that has two pairs of parallel sides.
Composite
A counting number greater than one that is divisible by a number pther than itself and one. Every composite number has three or more fctors.
Prime Factorization
The expression of a composite number as a product of its prime factors.
Complementary Angles
Two angles whose sums are 90 degrees.
Supplementary Angles
Two angles whose sum is 180 degrees.
Coordinate Plane
A grid on which any point can be identified by an ordered pair of numbers
Origin
The location of the number zero on a number line.
X-axis
The horizontal number line of a coordinate plane.
Y-axis
The vertical number line of a coordinate plane.
Power
The value of an exponential expression.
Capacity
The amount of liquid a container can hold.
Proportion
A statement that shows two ratios are equal.
Cross Products
The product of the numerator of one fraction and the denominator of another.
Irrational Numbers
Numbers that cannot be expressed as a ratio of two integers. Their decimal expansions are nonending and nonrepeating.
Experimental Probabilty
The probability of an event occurring as determined by experimentation.
Theoretical Probability
The probability that an event will occur, as determined by analysis rather than by experimentation.
Equilateral Triangle
A triangle in which all sides are the same length.
Isosceles Triangle
A triangle with at least two sides of equal length.
Scalene Triangle
A triangle with three sides of different lengths.
Right Triangle
A triangle whose largest angle measures 90 degrees.
Function
A rule for using one number (an input) to calculate another number (an output). Each input produces only one output.
Transversal
A line that intersects one or more other lines in a plane.
Corresponding Angles
A special pair of angles formed when a transversal intersects two lines. Corresponding angles lie on the same side of the transversal and are in the same position relative to the two intersected lines.
Exterior Angle
In a polygon, the supplementary angle of an interior angle.
Interior Angle
An angle that opens to the inside of a polygon.
Algebraic Addition
The combining of positive and negative numbers to form a sum.
Mass
The amount of matter in an object.
Weight
The measure of how heavy an object is.
Rotation
Turning a figure about a specified point called the center of rotation.
Translation
Sliding a figure from one position to another without turning or flipping a figure.
Reflection
Flipping a figure to produce a mirror image.
Transformation
The changing of a figure's position through rotation, reflection, or translation.
Corresponding Parts
Sides or angles that occupy the same relative positions in similar polygons.
Similar
Having the same shape but not necessarily the same size. Corresponding angles of similar figurea are congruent. Corresponding sides of similar figures are proportional.
Line of Symmetry
A line that divides a figure into two halves that are mirror images of eachother.
Unit Multiplier
A ratio equal to one that is composed of two equivalent measures.
Interest
An amount added to a loan, account, or fund, usually based on a percentage of the principal.
Principal
The amount of money borrowed in a loan deposited in an account that earns interest, or invested in a fund.
Compund Interest
Interest that pays on previously earned interest.
Simple Interest
Interest calculated as a percentage of the principle only.
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