Real Number System

Front

What is the classification of π (Pi)?

Back

Irrational, Real

Front

Which type of number could -14 NOT be?

Back

Natural

Front

What is the definition of integers?

Back

Whole numbers and their opposites

Front

What type of number is -3?

Back

Integer and Rational

Front

What are natural numbers?

Back

Positive whole numbers (1, 2, 3, ...) excluding zero and negatives.

Front

What is a rational number?

Back

A number that can be expressed as a fraction a/b where a and b are integers and b ≠ 0.

Front

What is an irrational number?

Back

A number that cannot be expressed as a simple fraction; its decimal representation is non-terminating and non-repeating.

Front

What are whole numbers?

Back

All non-negative integers (0, 1, 2, 3, ...).

Front

Is 0 a natural number?

Back

No, natural numbers start from 1.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions; irrational numbers cannot.