Page 17 - Math 4
P. 17

Number System

          1.10 Use of commas

               It is easier to read and write the bigger numbers by separating the digits at
               thousands and greater than thousands places by using commas (,).
               Remember! We start to use commas only in 4-digit and greater than 4-digit
               numerals.

               In Nepali and International place value system, we use commas in different
               ways.
                7000           7, 000      Use of commas up to ten-thousands place of Nepali and
                                           International systems are the same.
                70000          70, 000


                700000          7, 00,000 In Nepali system, each pair of digits greater than
                                           hundreds place is separated by commas.


                700000          700,000    In International system, each group of 3-digits greater
                                           than hundreds place is separated by commas

               Use of commas in Nepali system  Use of commas in International system

               52,00,000                             5,200,000
               Fifty-two lakh                        Five million two hundred thousand

               3,25,00,000                           32,500,000

               Three crore twenty-five lakh          Thirty-two million five hundred thousand


                                        Classwork - Exercise

          1.    Let's  rewrite  these  numerals  using  commas  in  Nepali  and
                International systems.


                Numerals       Use of comma in Nepali         Use of commas in International
                               system                         System
                15327


                804930

                6831400

                32495600

                517382490


                                                    15
         Approved by Curriculum Development Centre, Sanothimi, Bhaktapur  vedanta Excel in Mathematics - Book 4
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