RD Sharma Solutions for Class 6 of Chapter 3 “Whole numbers”. We know that the numbers from 0, 1, 2, 3, etc., are whole numbers, where a whole number is either zero or natural number. All-natural numbers are whole numbers, but all whole numbers are not natural numbers. We use whole numbers in our daily life to count things and to obtain the required quantity. It deals with the calculation of different numbers along with usage of Zero (0), Properties of Whole Numbers, Successor and Predecessor, Representation of Whole Numbers on Number Line.