KIDS TRIVIA

Detailed explanation-1: -Real numbers can be defined as the union of both rational and irrational numbers. They can be both positive or negative and are denoted by the symbol “R”. All the natural numbers, decimals and fractions come under this category.

Detailed explanation-2: -They are called real numbers because they are not imaginary, which is a different system of numbers. Imaginary numbers are numbers that cannot be quantified, like the square root of-1. The number, denoted as i, can be used for equations and formulas, but is not a real number that can be used in basic arithmetic.

Detailed explanation-3: -real number, in mathematics, a quantity that can be expressed as an infinite decimal expansion. Real numbers are used in measurements of continuously varying quantities such as size and time, in contrast to the natural numbers 1, 2, 3, …, arising from counting.