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    E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_01\Chap_01
                 \ 10-Nov-2025  Bharat Arora   Proof-8                                     Reader’s Sign _______________________ Date __________

                example 2. Mark the periods and rewrite the following numbers using commas.
                             a.  53426                      b.  60043                     c.  29837

                Solution.
                                      Thousands                     Ones                   How to write numbers
                                     TTh        Th          H          T         O             using commas

                             a.       5          3          4         2          6                  53,426
                             b.       6          0         0          4          3                  60,043

                             c.       2          9          8         3          7                  29,837
                example 3. Find the place value of each digit in 34,609.                  The place value of a digit is
                Express it in expanded form.                                             the product of its face value
                                                                                         and the value of the place it
                Solution. TTh    Th H      T   O                                                   occupies.

                              3   4   6    0   9                                                            Place
                                                           Face Value              Value of Place           Value
                                                       9 ones             = 9 × 1          =           9

                                                       0 tens             = 0 × 10         =           0
                                                       6 hundreds         = 6 × 100        =       600
                                                       4 thousands        = 4 × 1,000      =     4,000
                                                       3 ten thousands = 3 × 10,000  =  30,000

                expanded form: 30,000 + 4,000 + 600 + 9

                example 4. Express the following numbers in the expanded form.
                             a.  27,396                     b.  56,304                    c.  10,496

                Solution.  a.  27,396 = 20,000 + 7,000 + 300 + 90 + 6
                                                                                         A number, when expressed
                             b.  56,304 = 50,000 + 6,000 + 300 + 4
                                                                                         as a sum of the place values
                             c.  10,496 = 10,000 + 400 + 90 + 6                          of its digits, is said to be in its

                                                                                               expanded form.

                            Exercise 1A

                    1.  Write the numeral for the given number names.

                        a.  Fifty-six thousand four hundred thirteen                ____________

                        b.  Eighty-three thousand ninety-two                        ____________

                        c.  Sixty-six thousand three hundred fifty-two              ____________

                        d.  Ninety thousand three                                   ____________

                        10       Mathematics 4

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