Graphing
(1) A number used to locate a point on a number line, or (2) an ordered pair of numbers used to locate a point in a coordinate plane.
coordinate(s)
The numbers used to count; the members of the set {1,2,3,4,5,...}. Also called natural numbers.
counting numbers
Two numbers whose sum is zero; a positive number and a negative number whose absolute values are equal.
opposites
The value of a digit based on its position within a number.
place value
An angle whose measure is between 90° and 180°.
obtuse angle
Two lines that intersect at right angles.
perpendicular lines
A symbol or group of symbols that represents a number.
numeral
The four basic mathematical operations: addition, subtraction, multiplication, and division.
operations of arithmetic
Speed
Rate
The distance around a closed, flat shape.
perimeter
A grid on which any point can be identified by an ordered pair of numbers.
coordinate plane
Numbers greater than zero.
positive numbers
A statement that uses the symbol "=" to show that two quantities are equal.
equation
A comparison of the magnitudes of two numbers. The ratio of a to b is a/b.
Ratio
An angle whose measure is 180 degrees.
Straight Angle
A number line used to reference points.
Axis
A whole number greater than 1 whose only whole number divisors are 1 and the number itself.
Prime Number
Delete (an equal factor) from both sides of an equation or from the numerator and denominator of a fraction.
Canceling
A product of a counting number and another number.
multiple
The size of the inside of a flat shape. Area is measured in square units.
area
A method of displaying data, often used to show information about percentages or parts of a whole.
circle graph
Another term for "counting numbers".
natural numbers
Any process for solving a mathematical problem.
algorithm
A method of writing a number as the product of a decimal number and a power of 10.
Scientific Notation
Area = Base x Height or Area = Length x Width
Area of a Rectangle