The Number System
Math Vocabulary
Rational Numbers
Irrational Numbers
Ordering Real Numbers
100
A whole number is
What is 1,2,3,4...
100
______ is a number that can be expressed as a fraction.
What is a "rational number"?
100
What two types of decimals can be rational numbers.
What is terminating, repeating decimals.
100

Name the two ways irrational number may be expressed.

What is square roots, non-repeating decimals, symbols like Pi

100
The square root of 2 is between
What is "1" and "2"?
200

What number is not positive or negative?

Zero

200

What are the three types of numbers that are integers.

Whole numbers, their opposites, and zero.

200

A rational number is any number that can be written as ____.

What is a over b, a/b. A fraction.

200
Which of the following is an irrational number: .121212121212... .456661455561... .456745674567...
What is .456661455561...
200

Order the following Real Numbers: Pi, the square root of 9, and 3.1

What is the square root of 9, 3.1, and Pi?

300
Name the four sub sets of numbers with in the real numbers set.
What is whole numbers, integers, rational numbers, irrational numbers.
300
This type of decimal will continue to infinity, giving the same pattern.
What is a repeating decimal.
300

Name a type of square root that is also a rational number

A perfect square

300
Which of the following is an irrational number: √49 √144 √62
What is √62
300

The square root of 7 is closest to this integer

What is 3?

400

3.12703182091809... falls into what set of numbers?

What is irrational numbers?

400

An irrational number is any number that can not be written in what form?

What is a over b, or a/b, as a fraction

400
9/8 is a __________ decimal.
What is terminating decimal, 1.125.
400
Name two types of decimals that are NOT considered irrational.
What is terminating and repeating decimal.
400

The square root of 1/4 is 

1/16

500

√144 falls into what set(s) of numbers?

What is whole numbers, integers, rational numbers

500

A real number can be what type(s) of numbers?

What is whole numbers, integers, rational numbers, irrational numbers

500

2/3 is a __________ decimal.

What is repeating decimal, 0.666666...

500
Explain why PI (π) is an irrational number.
What is PI has a decimal expansion that repeats infinitely with no pattern.
500
The set of numbers between whole numbers and rational numbers.
What is the set of "Integers"?
M
e
n
u