Things to know from this video:

-There are 4 types of numbers, Natural numbers, Whole numbers, Rational numbers and Integers

-if we want to know which number is bigger we can see the digits of the numbers. The number which has the most digits is bigger.

-if the digits of the numbers are same then we can count the numbers from left to right, see which no has the largest number in left to right order. And tell which number is bigger

-if we have any three numbers like for example 7,5,4. From these numbers we can make six new numbers, those numbers are 754,457,574,547,475,745.

-In numbers in Indian system, ten has one zero, hundred has two zeroes ,thousand has three zeroes, ten thousand has four zeroes, lakh has five zeroes, ten lakhs has six zeroes, crore has 7 zeroes and ten crore has eight zeroes.