Real Number System

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. Examples include 1/2, 3, and -4.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction. It cannot be written as a ratio of two integers. Examples include √2 and π.

Front

What is a natural number?

Back

Natural numbers are the set of positive integers starting from 1, 2, 3, and so on. They do not include zero or negative numbers.

Front

What is a whole number?

Back

Whole numbers are all natural numbers including zero. They are non-negative integers: 0, 1, 2, 3, ...

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.

Front

Is 0 a natural number?

Back

No, 0 is not considered a natural number. Natural numbers start from 1.

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal fraction that eventually repeats the same sequence of digits indefinitely. For example, 0.333... is a repeating decimal.

Front

What is a terminating decimal?

Back

A terminating decimal is a decimal that has a finite number of digits after the decimal point. For example, 0.75 is a terminating decimal.

Front

Classify the number √13: Rational or Irrational?

Back

Irrational.

Front

Classify the number π: Rational or Irrational?

Back

Irrational.