## Math Vocabulary

##### Created by:

RobHasty  on October 20, 2012

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# Math Vocabulary

 AreaThe total size a surface takes up; the number of square units needed to cover a region.
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#### Definitions

Area The total size a surface takes up; the number of square units needed to cover a region.
Array A set of objects arranged in order often in rows and columns.
Attribute A characteristic of a 2D shape.
Bar Graph A graph that shows information using rows and columns (bars)
Compare To decide if one number is greater than (>) or less than (<) another number.
Congruent Having the same size and shape.
Data Information.
Decrease To count backwards; to get smaller.
Denominator The bottom number in a fraction that shows how many parts the whole is broken into.
Elapsed Time The amount of time that has passed between two events.
Equal Distance The same amount of separation.
Equation A number sentence in math that has an equal sign to show that two expressions are equal.
Equivalent Having the same amount or value.
Estimate To make a reasonable guess about a value or measurement based on given information.
Factor Numbers that are multiplied together to give a product.
Fraction A symbol used to name a part of a whole, a part of a set or a location on a number line.
Gram A small metric unit used to measure mass or weight; g.
Hexagon A polygon with 6 sides.
Horizontal Line A straight path that goes from left to right.
Increase To count forward; to get bigger.
Kilogram A large metric unit used to measure mass or weight; kg.
Length The distance from one end to another.
Liquid Volume The amount of space a liquid takes up.
Liter A metric unit used to measure capacity; L.
Mass The amount of matter in an object.
Metric A measurement system based on the number 10.
Mixed Number A number with a whole number part and a fraction part.
Multiply A mathematical operation where a number is added to itself a number of times; to quickly combine groups.
Numerator The number above the fraction bar in a fraction.
Parallelogram A quadrilateral with opposite sides that are parallel and of equal lengths.
Partition To separate or divide into parts or sections.
Patterns Repeated shapes or numbers or recurring sequence.
Pentagon A polygon with 5 sides.
Perimeter The total distance around the outside of a shape.
Pictograph A graph using pictures or symbols to show data.
Plane Figure A flat shape that has only two dimensions.
Polygon A plane figure that has three or more straight sides.
Product The result when two numbers, called factors, are multiplied together.
Quadrilateral A polygon with four sides.
Reasonableness Logical responses that make sense for the given solution.
Round To change a number to a more convenient number.
Scale Used to measure mass or weight; how much the intervals change in a graph.
Side Length The distance of a side from one end to the other end.
Square Unit A square is sides 1 unit long; used to measure area.
Standard Units A non-metric unit of measurement used in the United States.
Tiling Fitting individual tiles together without gaps or overlaps.
Trapezoid A polygon with four sides and only one pair of parallel sides.
Unknown Something that is undetermined.
Vertical Line A line that goes up and down.

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