The Number System
Math Vocabulary
Rational Numbers
Irrational Numbers
Classify
100
A whole number is
What is "0" and counting numbers, i.e. 0,1,2,3,4...
100
______ is a decimal which has a final digit.
What is a terminating decimal
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 that are not perfect squares, decimals that are non-repeating and non-terminating
100

0

whole, integer, rational, real

200
Name three integers
What is ...-1, -2, -3, 0, 1, 2, 3...
200
___________ is a decimal which has a repeating pattern
What is a repeating decimal
200
A rational number is any number that can be written as ____.
What is a over b, a/b.
200
Which of the following is an irrational number: .121212121212... .456661455561... .456745674567...
What is .456661455561...
200

pi

irrational, real

300

Name the three sub sets of numbers within the rational numbers set.

What is natural numbers and whole numbers and integers

300

A number made by squaring a whole number.

Hint: Type of number that makes a square root rational

What is a Perfect Square.

300
A rational number is this type of square root
What is a perfect square
300
Which of the following is an irrational number: √49 √144 √62
What is √62
300

-2.3

rational, real

400
3.12703182091809... falls into what set of numbers?
What is irrational numbers, real numbers.
400
An irrational number is any number that can not be written in what form?
What is a over b, a/b
400

9/4 is a __________ decimal.

What is terminating decimal, 2.25.

400
Why is pi considered an irrational number?
What is because it is a non-repeating non-terminating decimal.
400

square root of 50

irrational, real

500

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

What is natural numbers, whole numbers, integers, rational numbers and real numbers.

500

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

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

500

2/3 is a __________ decimal.

What is repeating decimal, 0.6...

500

What are the first 10 digits of pi?

3.1415926535

500

square root of 121

natural, whole, integer, rational, real

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