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Number Line
A graph that shows real numbers as ordered points on a line starting with 0. It can go in a positive or negative direction.
Number Sentence
A math statement that always has a relation symbol (=, < , >). Example: 2 + 3 = 5. 4 > 5
Numerator
The dividend in a fraction or ratio OR The top number in a fraction or ratio. Example: In 7/8, 7 is the numerator.
Order of Operations
The rules that tell the order math operations (+, -, x, etc.) are done when there is more than one operation.
Pentagon
A polygon with exactly 5 sides.
Perimeter
The distance around the outside of a closed, 2-D shape.
Circumference
The distance around the outside of a circle.
Pictograph
A chart that uses pictures to show numbers of things being graphed.
Place Value
The value of the place a digit is in, in a number. This is not the same as the value of the digit. Example: In the number 120. The 2 is in the ten's p...
Plane
A shape with no dimensions- no length, width, or height. Examples: An infinitely thin sheet of flat glass that goes in all directions forever.
Polygon
A closed 2-D shape. Each side is a line segment and intersects exactly two other sides. Each point of intersection creates a vertex or point.
Figure
Also called a shape
Product
The answer to a problem when you multiply one or more numbers.
Quadrilateral
A polygon with exactly 4 sides.
Quotient
The answer to a problem when you divide one number by another number.
Rhombus
. A parallelogram with all sides congruent.
