Knowing Our Numbers

Knowing Our Numbers - Numbers

Comparison of numbers

• Rules for Comparison of Numbers:

  Rule I: We know that a number with more digits is always greater than the number with less number of digits.

  Rule II: When the two numbers have the same number of digits, we start comparing the digits from left most place until we come across unequal digits.

• Rule (1): The number/numeral having more digits is greater.

  We know that a number with more digits is always greater than the number with less number of digits.

  
  

  (i) The number of 2 digits is greater than the number of one digit.

  
  

  (ii) The number of 3 digits is greater than the number having 2 or 1 digit.

  
  

  (iii) The number of 4 digits is greater than 3 or 2 or 1 digit number.

  
  

• Rule (2): (a) If two numbers have the same number of digits, we compare them on the basis of their extreme left digits. The number with the greater extreme left digit is greater.

  As:

  
  

  (i) 6138 > 5978, because 6 > 5

  
  

  
  

  (ii) 451926 > 351658, because 4 > 3

• (b) If the extreme left digits of two numbers are the same, we compare them on the basis of the next digits towards their right and so on.

  
  

  As:

  
  

  (i) 64283 > 63198, because 6 = 6, but 4 > 3

  
  

  (ii) 367825 > 367543, because 367 = 367, but 8 > 5

• In other words;

  When the two numbers have the same number of digits, we start comparing the digits from the left most place until we come across unequal digits.