## Class 9 Exercise 1.1 Introduction Chapter 1 Number Systems NCERT Mathematics

Chapter 1 Number Systems Exercise 1.1 Introduction Natural Numbers The counting numbers are known as natural numbers. The collection of all natural numbers is denoted by ‘N’ N = { 1, 2, 3, 4 ………………….. ∞ } Whole Numbers If 0 is included in the collection of natural numbers then the collection 0,1,2,3,4…..infinite are known […]

Click Here to Continue Reading