Class 10 Maths: Real Numbers Olympiad Questions

Real numbers are the complete set of rational or irrational numbers. The real numbers are denoted by R.

Every rational & irrational number is a real number. Natural numbers, whole numbers, and integers are other parts of the number system.

Rational number

• Rational numbers are such numbers that can be presented in the p/q form.
• In the rational number form q is not equal to zero.
• The representation symbol of a rational number is Q.
• In two rational numbers, there are infinite rational numbers.
• All integers are rational numbers.
• But all rational numbers are not integers.

Natural number

• The number starts from 1 and moves on to infinite numbers.
• The natural numbers are presented by N.

Whole number

• The number starts from 0, 1, 2, and moves on.
• The whole numbers are presented by W.

Integers

• The integers are the complete set of positive and negative numbers.
• The integers are represented by Z.

Prime number

• The number can be divided by one and by itself.
• There are two factors of prime numbers.
• And 1 is not a prime number.