Terminology

Question 1

Natural Numbers

Answer 1

Positive whole numbers

Question 2

Integers

Answer 2

Consist of natural numbers, their negatives, and zero

Question 3

Rational Numbers

Answer 3

Ratios of integers (x/y), has repeating decimals

Question 4

Irrational Numbers

Answer 4

Real numbers that cannot by expressed as a ratio of integers (sqrt, pi, etc), has nonrepeating decimals

Question 5

Commutative Property

Answer 5

The order of numbers does not matter

Question 6

Associative Property

Answer 6

The order of calculation does not matter

Question 7

Distributive Property

Answer 7

You can multiply a sum by each of its terms and add the result

Question 8

Additive Identity

Answer 8

0, because a+0=a

Question 9

Multiplicative Identity

Answer 9

1, because 1*a=a

Question 10

Quotient

Answer 10

The result of division

Question 11

Numerator

Answer 11

The number being divided by

Question 12

Denominator

Answer 12

The number that divides the numerator

Question 13

Set

Answer 13

A collection of objects

Question 14

Element

Answer 14

An object within a set

Question 15

Union

Answer 15

Contains all elements of multiple sets

Question 16

Empty Set

Answer 16

A set that contains no elements

Question 17

Intersection

Answer 17

Contains only elements multiple sets have in common

Question 18

Interval

Answer 18

A set of real numbers

Question 19

Open Interval

Answer 19

An interval that excludes endpoints

Question 20

Closed Interval

Answer 20

An interval that includes endpoints

Question 21

Absolute Value

Answer 21

The distance from a number to 0 on a real number line

Question 22

Properties of Real Numbers

Answer 22

Commutative, Associative, and Distributive

Question 23

Exponential Notation

Answer 23

a^n where a is the base and ^n is the exponent, a=a*a ^n times