62 terms

Mixed Number

a number made up of a whole number and a fraction

Equivalent

fractions or decimals with the same value but different numbers

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.

sum

the answer when adding

difference

the answer when subtracting

product

the answer when multiplying

quotient

the answer when dividing

how many more

phrase that signals subtraction

about how much

phrase that signals estimation

Area

The number of square units needed to cover a given surface.

Area of a rectangle

LENGTH X WIDTH

Area of a triangle

1/2 base x height

Perimeter

The distance around a figure

Volume

How much space an object takes up. L x W x H

1 kilometer

1,000 meters (m) =

1 meter

100 centimeters (cm) =

1 centimeter

10 millimeters (mm) =

1 kilogram

1,000 grams (g) =

1 kiloliter

1,000 liters (L) =

1 liter

1,000 mililiters (ml) =

Kilo

1,000 =

Chord

A line segment with both endpoints on the circle.

Diameter

A chord that passes through the center of the circle.

1 diameter

2 radii =

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.

1 radius

1/2 the diameter =

1 circumferance

about 3 diameters =

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.

Protractor

A tool used to measure angles

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.

Tree Diagram

A diagram used to show the total number of possible outcomes

Probability

A fraction that describes how likely it is that an event will occur.

Line Graph

A graph that shows change over time.

Measures of Center

Mean, median, and mode are examples of this.

Mean

Is an average and measures Fair Share.

Mean

This 6 + 9 + 8 + 8 + 9 = 40

40 ÷ 5 = 8 shows?

40 ÷ 5 = 8 shows?

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

Open Sentence

An equation that contains a variable.

Variable

A letter or symbol used to represent a number that is unknown.

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)

(3 x 4) + (3 x 5) = 3(4 +5)

Congruent

Having the same size and shape.