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    E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_01
                 \ 11-Sep-2024  Sonia Suyal   Proof-1                                         Reader’s Sign _______________________ Date __________

                  orDeriNg oF Numbers

                  We arrange the numbers in increasing order, that is, from the                   th H t O

                  smallest to the greatest; it is called ascending order. Ritvik noted  2 9 3 7
                  down the numbers from the number plates of four cars.                           6 5 4 3         Greatest
                                                                                                  1 3 5 9
                                                                                                                  Smallest
                  The numbers are 2,937, 6,543, 1,359 and 5,023.                                  5 0 2 3

                  He wants to arrange the numbers in a particular order.
                  First, he writes the given numbers in the place value chart and then starts comparing.

                  Looking at the thousands place digits, 2, 6, 1 and 5; he finds that 1 < 2 < 5 < 6.

                  Thus, the four numbers in ascending order will be arranged as:
                         1,359 < 2,937 <  5,023 < 6,543

                  Also, when we arrange the numbers in decreasing order, that is, from the greatest to the
                  smallest, it is called the descending order.

                  So, the descending order of the numbers is: 6,543 > 5,023 > 2,937 > 1,359.

                  example: The depths of the Atlantic Ocean is 3,646 m; the Pacific Ocean is 4,280 m; the

                  Arctic Ocean is 1,204 m; the Indian Ocean is 3,741 m. Arrange these depths of Oceans
                  in descending order.

                  Solution:  Looking at the thousands place digits, 3, 4, 1 and 3; we find that 4 > 3 = 3 > 1.

                               That means, 4,280 is the greatest and 1,204 is the smallest. Now, comparing
                               the hundreds digits of the other two numbers, we              th H      t   O

                               find 7 > 6. So, 3,741 > 3,646.                                 3   6    4   6
                                                                                              4   2    8   0      Greatest
                                   Thus, the four numbers in descending order will            1   2    0   4       Smallest
                               be arranged as: 4,280 > 3,741 > 3,646 > 1,204                  3   7    4   1

                          Knowledge Desk
                        Most of the Earth's surface is covered by the oceans. The major four oceans are
                        the Atlantic, Pacific, Arctic and Indian Oceans.

                           Practice time 1C

                  1.  Compare the following by filling in the blanks >, < or =.

                       (a)  524 ____ 2,193              (b)  7,329 ____ 3,279            (c)  8,028 ____ 8,208

                       (d)  2,613 ____ 2,631            (e)  9,162 ____ 9,126             (f)  9,325 ___ 9,325

                  18                                                                                    Mathematics-3

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