Mixed Number
a number made up of a whole number and a fraction
Equivalent
have the same value (equal)
Prime
A whole number that has exactly two factors, 1 and itself.
Composite
A number with more than two factors
Even
Numbers that can be divided equally by 2
Odd
Any number not evenly divisible by 2
Add
Synonyms are sum and increase.
Subtracting
Synonyms are difference and decrease.
product
the answer when multiplying
quotient
the answer when dividing
Area
The number of square units needed to cover a given surface.
Area of a square/rectangle
LENGTH x WIDTH
Area of a triangle
base times height divided by 2
Perimeter
The distance around a figure, add all sides
Volume
How much space an object takes up. L x W x H
Diameter
A chord that passes through the center of the circle.
radius plus radius =
diameter
Radius
A line segment with one endpoint at the center of a circle and the other endpoint on the circle
Circumference
The distance around a circle. A circles perimeter.
Acute
An angle that is less than 90 degrees
Obtuse
An angle that measures more than 90 degrees but less than 180 degrees
Right
An angle that measures 90 degrees
Straight
An angle that measures 180 degrees.
Acute Triangle
A triangle with 3 acute angles.
Right Triangle
A triangle with one right angle.
Obtuse Triangle
A triangle with one obtuse angle.
Equilateral Triangle
A triangle that has 3 congruent sides.
ScaleneTriangle
A triangle with no congruent sides.
Isosceles Triangle
A triangle with 2 congruent sides.
Rectangle
A parallelogram with 4 right angles. A square is also this type of quadrilateral.
Square
A parallelogram with four congruent sides and four right angles.
Parallelogram
A quadrilateral with two pairs of parallel sides.
Rhombus
A parallelogram with 4 congruent sides. A square is also this type of quadrilateral.
Trapezoid
A quadrilateral with exactly one pair of parallel sides. A square is not this type of quadrilateral.
Mean
data: 6, 9, 8, 8, 9Add them all: 6 + 9 + 8 + 8 + 9 = 40 Divide by how many: 40 รท 5 = 8
Median
Middle # when put in high to low order, or the average of the 2 middle #'s.
Mode
The number that occurs most often in a set of data
Range
Biggest # - Smallest # shows variation
Expression
A mathematical phrase that contains operations, numbers, and/or variables. No equal sign.
Equation
A mathematical sentence that contains an equals sign.
Distributive Property
3(4 + 5) = 3 x 4 + 3 x 5(3 x 4) + (3 x 5) = 3(4 +5)
Congruent
Having the same size and shape.
The line in a fraction says....
divide
Variable
A symbol used to represent a quantity.
Reflection
A transformation that "flips" a figure over a mirror or reflection line.
Rotation
CIRCULAR MOVEMENT AROUND AN AXIS
Translation
Sliding: moving a shape without rotating or flipping it.
Order of Operations (PEMDAS)
the sequence in which operations areperformed when evaluating an expression: Parenthesis, Exponents, Multiplication and Division, Addition and Subtraction.
stem and leaf plot
A system used to condense a set of data where the greatest place value of the data forms the stem and the next greatest place value forms the leaves.
Metric Measurement System
system of measurement which is based on units of ten
whole number place value chart
A chart that shows the value of the digits in a number
decimal place value chart
The position of a digit to the right of the decimal point.