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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-01
              \\December 6, 2023 1:30 PM   Bharat Arora   P-6           Reader _________________________   Date: ___________________74





                4.  Write the predecessor and the successor of the following numbers:

                    (a)  34364                      (b)  73648                       (c)  11143

                    (d)  840068                     (e)  154836                       (f)  199999

                5.  (a) Find the sum of the place values of two 6s in 460246.
                    (b)  Find the difference of the place value and the face value of digit 4 in 740128.


              ComPAring And ordering numbers


              We have already  learnt  the  method  of comparing  numbers  up  to 4  digits  in  the
              previous class. The rules of comparison for large numbers are the same.

              Comparing numbers with different number of digits


              The number with more digits is greater.
              example 1: Compare 36,455 and 6,83,779

              Solution:       tth th      H     t    O                 L   tth th      H     t    O

                               3     6    4     5    5                 6    8     3     7    7    9

                                        5 digits                                  6 digits
              Thus, 36,455 < 6,83,779.

              Comparing numbers with the same number of digits

              If the number of digits is same in the given numbers, then we start comparing the

              digits from the extreme left, that is, from the greatest place to the lower places.

              If the digits  are same at  a  place,  we move to the  next  digit  from the  left  until  we
              find different digits at any particular place. The digits that are different are compared
              to find the larger number.

              example 2: Which is greater?

                    (a)  62,538 or 62,438                            (b)  8,24,646 or 8,24,776
              Solution:

                    (a)  tthth H t O           tthth H t O        (b)    L tthth H t O           L tthth H t O

                           6 2 5 3 8            6 2 4 3 8                8 2 4 6 4 6             8 2 4 7 7 6


                                           =                                                 =
                                           =                                                 =
                                           >                                                 =
                                                                                             <

                         So, 62,538 > 62,438                              So, 8,24,646 < 8,24,776


              Mathematics-4                                                                                          17
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