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    E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_03
                 \ 06-Jan-2024  Sonia Suyal   Proof-1                                         Reader’s Sign _______________________ Date __________

                                       Learning by Doing

                  objective: To reinforce the concept of subtracting 4-digit numbers.

                  Materials Required: Arrow cards, sheets of paper, pencils, sketch pens
                  procedures:

                          Divide the class into pairs and distribute them 8 arrow cards in which a digit is

                          written on each card.
                                 0           5          8           3           6           7          4           9

                          Then, ask the pair to form two different 4-digit numbers with the given arrow cards.
                          Write the numbers formed on the paper sheet and then find their difference.

                          The pair of students will repeat the activity until time permits.

                          Also, ask them to form the greatest and the smallest numbers using the given arrow
                          cards and find their difference.

                          Brain Sizzlers

                      1.  Find the value of *, if its face value is same in each case.                       H    t   O
                                                                                                             *    1   *
                      2.   If    +     +       = 420 and        +      stands for 220, then which         – 3     *   7
                          number will stand for        +      –       ?                                      1    *   8

                  66                                                                                    Mathematics-3

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