The Real Number System

Front

What is a whole number?

Back

A whole number is a non-negative integer, which includes 0 and all positive integers (0, 1, 2, 3, ...).

Front

Classify the number 17/4.

Back

Rational, Real.

Front

Which of the following statements is always true? All integers are whole numbers, all rational numbers are integers, some whole numbers are not rational numbers, all whole numbers are integers.

Back

All whole numbers are integers.

Front

Classify the number 0.

Back

Whole, Integer, Rational, Real.

Front

Is √2 Irrational?

Back

Yes.

Front

What are natural numbers?

Back

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

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero (-2, -1, 0, 1, 2, ...).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation is non-repeating and non-terminating (e.g., √2, π).

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions.