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Page 21 - Math Genius C2
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    E:\Working\Orange_Education\Math_Genius_2\Open_Files\Chap_01
                   \ 26-Sep-2025  Bharat Arora   Proof-10                                   Reader’s Sign _______________________ Date __________

                  Expanded Form and Standard Form of a Number

                  The expanded form of a number is the sum of the place values of its digits.

                  The standard form of a number is the numeral that is written using the face values
                  of the digits.

                  Look at the following numbers.

                   (a)     H T O      Place                           (b)     H T O      Place

                           5 0 7 value                                        2 6 9 value

                                         7                                                  9

                                         0                                                 60
                                       500                                                 200

                          Expanded form: 500 + 0 + 7                         Expanded form: 200 + 60 + 9
                          Or 5 hundreds + 0 tens + 7 ones                    Or 2 hundreds + 6 tens + 9 ones

                          Standard form: 507                                 Standard form: 269

                           Practice time 1D

                  1.  Write the place value of the coloured digit in the following numbers.

                       (a)       4  6  2                 (b)      8  2  5                  (c)     9  3  4

                  2.  Write the place value and face value of each digit in the following numbers.

                       (a)          H T O       Place Face               (b)          H T O       Place Face

                                    2 1 5       value value                           7 0 9       value value

                  3.  Form numbers using the given place values of digits. One has been done for you.

                       (a)      9  4  7                  (b)                               (c)

                                                  7                                 7                                3

                                                 40                                20                                0

                                                900                               700                              500

                  Mathematics-2                                                                                          19

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