33 terms

numerator

The top number in a fraction.

denominator

The bottom number in a fraction.

quotient

The answer in a division problem.

dividend

A number by which another number is divided.

divisor

A number that is to be divided by a number.

sample space

The set of all possible outcomes in a probability experiment

probability

The chance of an event occurring; expressed using a ratio. The numerator describes how many times the event will occur, while the denominator describes the total number of outcomes for the event.

outcome

Possible results of a probability event. For example, 4 is an outcome when a number cube is rolled.

ratio

A comparison of two numbers by division. Example: The ratio 2 to 3 can be expressed as 2 out of 3, 2:3, or 2/3.

tree diagram

A diagram used to show the total number of possible outcomes in a probability experiment

event

A specific outcome or type of outcome

possible outcome

All the possible events in a probability experiment

geometric pattern

A sequence that is composed of shapes, figures, and diagrams. Geometric patterns may involve shape, size, angles, transformations of shapes, and growth.

arithmetic sequence

A set of numbers that occurs in a specific pattern

triangular number

A number that can be represented geometrically as a certain number of dots arranged in a triangle, with one dot in the first (top) row and each succeeding lower row having one more dot that the row above it. To find the next triangular number, a new row is added to an existing triangle, and total number of dots counted.

square number

A number that can be represented geometrically as the number of dots in a square array. Square numbers are perfect squares and are the numbers that result from multiplying any whole number by itself

(e.g., 36 = 6 × 6).

(e.g., 36 = 6 × 6).

consecutive

Following one after the other in order.

common ratio

The ratio used to determine what each number is multiplied by in order to obtain the next number in the geometric sequence

common difference

The difference between each succeeding number in order to determine what is added to each previous number to obtain the next number

reflection or flip

The result of flipping a figure over a line, so as to see a mirror image of the figure

rotation or turn

The result of turning a figure around a point or a vertex

translation or slide

The result of moving a figure in any direction within a given area

dilation or scale increase/decrease

The result of enlarging or shrinking a figure by a scale amount

exponent

The number that tells how many times the base is used as a factor

exponential notation

Numbers written as exponents; the base is the number that is multiplied, and the exponent represents the number of times the base is used as a factor.

power

Written as a superscript number, it symbolizes how many times the base number must be multiplied to find the numerical value of the exponent.

base

The factor that will be multiplied in an exponent. The power tells how many times the base will be multiplied to find the numerical value of the exponent.

power of ten

An exponent composed of the number ten (10) raised to a power. The power tells how many zeroes will be in the standard form of the exponent. For example, 10³ will have three zeroes in the answer, making it 1,000. If 10³ were written as a product of its factors, it would read 10×10×10=1,000.

square root

A number which, when multiplied by itself, produces the given number (e.g., the square root of 49 is 7 since 7 × 7 = 49).

squared

A number multiplied by itself; symbolized by a superscript 2 written above and to the right of a number. For example, 5 squared (5²) would be solved by multiplying 5×5=25.

perfect square

The number that results from multiplying any whole number by itself (e.g. 36 = 6 × 6).

scientific notation

A number written as a product of a number greater than or equal to 1 but less than 10 times a power of 10 (e.g., 3.2 × 103 is scientific notation for 3,200).

cubed

The product in which a number is a factor three times; 2 cubed is 8 because 2 X 2 X 2 = 8