Classifying Real Numbers

Front

What kind of number does have elements … , −3, −2, −1, 0, 1, 2, 3, … ?

Back

Integers are the set of whole numbers that include negative numbers, zero, and positive numbers.

Front

Which number has a subset of zero and natural numbers?

Back

Whole numbers include all natural numbers and zero.

Front

Is √121 rational or irrational?

Back

Rational, because √121 = 11, which is a whole number.

Front

Classify the number -23.

Back

-23 is a Real, Rational, and Integer.

Front

How would 0.2424242424... (0.24 repeating) be classified?

Back

Real and Rational, because it can be expressed as a fraction.

Front

What are natural numbers?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).

Front

What are whole numbers?

Back

Whole numbers are all natural numbers including zero (0, 1, 2, 3, ...).

Front

What are integers?

Back

Integers are whole numbers that can be positive, negative, or zero (..., -2, -1, 0, 1, 2, ...).

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction of two integers (e.g., 1/2, 3, -4).

Front

What are irrational numbers?

Back

Irrational numbers cannot be expressed as a simple fraction (e.g., √2, π).