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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 __________

                  romaN Numerals                                                                       Subject Enrichment

                  The symbols that we use today to write numbers are called Hindu-Arabic Numerals.
                  However, a long time ago, there was another system of representing numbers called the

                  Roman Numerals. This system started in ancient Rome.

                  In this system, seven letters of the alphabet are used as basic symbols.
                   roman numerals                    I         V          X          L         C          D         M
                   Hindu-arabic numerals             1         5         10         50        100       500       1000

                  A combination of these letters, when arranged in the correct order, represents a counting

                  system. The Roman numerals for the first 10 Hindu-Arabic numbers are shown below:

                       1         2          3         4         5          6         7          8         9         10
                       I         II        III        IV        V         VI        VII       VIII        IX        X

                           Think and Answer
                         List 5 places where we use Roman numeral in today's life to write numbers.

                          Encapsulate
                      math
                                                        NUmberS UP tO 9999

                                 Place Value of a Number                                Face Value of a Number

                   • Value of each digit in a number                      Face value is the actual value of the digit in a number
                   •  Multiply the digit with 1000, if it is in the thousands place.  example: Face value of 4 in 485 is 4.
                   •  Multiply the digit with 100, if it is in the hundreds place.
                   •  Multiply the digit with 10, if it is the tens place.                 2-digit Numbers
                   •  Multiply the digit with 1, if it is in the ones place.
                                                                          Smallest number 10      Greatest number 99
                     example: Place value of 4 in 485 is 400

                                    expanded Form                                          3-digit Numbers
                   The number represented as the sum of place value of its   Smallest number 100     Greatest number 999
                   each digit.
                   example: 485 = 400 + 80 + 5
                                                                                           4-digit Numbers
                        Formation of greatest and Smallest Numbers
                                                                          Smallest number 1000   Greatest number 9999
                    To  form  the greatest  To form the smallest
                    number, arrange the given  number, arrange the given
                    digits in descending order. digits in descending order.             even and Odd numbers
                    Without repetition of digits: 1, 2, 7, 6
                    example: 7621           example: 1267                 Every even number  ends  with  the  digit  2,  4,  6,  8 or 0.
                    With repetition of digits: 2, 0                       example: 56, 742, 1230
                                                                          Every odd  number  ends  with  the  digit  1,  3,  5,  7 or 9.
                    example: 2220           example: 2000
                                                                          example: 51, 637, 1459

                  Mathematics-3                                                                                          25

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