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E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_10
             \ 06-Jan-2024               Sonia Suyal   Proof-1                            Reader’s Sign _______________________ Date __________





              rules of a leap year:
                                                                                             Think and Answer
                  •  A year may be a leap year if it is divisible by 4.                   Is every year ending with
                  •  Century years that are divisible by 100, such as 1900 or             00 a leap year? Write

                   2000 are not leap years unless they are also divisible by 400.         reason for your answer.
                  •  For this reason, the years 1700, 1800, and 1900 were not leap years. But the years

                   1600 and 2000 were leap years.

                       Practice time 10f


              1.  Look at the given calendar of the year 2025.







                    Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa
                            1  2  3  4                         1          30  31         1                1  2  3  4  5
                     5  6  7  8  9  10  11     2  3  4  5  6  7  8        2  3  4  5  6  7  8        6  7  8  9  10  11  12
                    12  13  14  15  16  17  18  9  10  11  12  13  14  15  9  10  11  12  13  14  15  13  14  15  16  17  18  19
                    19  20  21  22  23  24  25  16  17  18  19  20  21  22  16  17  18  19  20  21  22  20  21  22  23  24  25  26
                    26  27  28  29  30  31     23  24  25  26  27  28     23  24  25  26  27  28  29  27  28  29  30


                    Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa
                               1  2  3         1  2  3  4  5  6  7             1  2  3  4  5         31           1  2
                     4  5  6  7  8  9  10      8  9  10  11  12  13  14   6  7  8  9  10  11  12     3  4  5  6  7  8  9
                    11  12  13  14  15  16  17  15  16  17  18  19  20  21  13  14  15  16  17  18  19  10  11  12  13  14  15  16
                    18  19  10  21  22  23  24  22  23  24  25  26  27  28  20  21  22  23  24  25  26  17  18  19  20  21  22  23
                    25  26  27  28  29  30  31  29  30                    27  28  29  30  31         24  25  26  27  28  29  30


                    Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa     Su  M  T  W  Th  F  Sa
                       1  2  3  4  5  6                1  2  3  4         30              1             1  2  3  4  5  6
                     7  8  9  10  11  12  13   5  6  7  8  9  10  11      2  3  4  5  6  7  8        7  8  9  10  11  12  13
                    14  15  16  17  18  19  20  12  13  14  15  16  17  18  9  10  11  12  13  14  15  14  15  16  17  18  19  20
                    21  22  23  24  25  26  27  19  20  21  22  23  24  25  16  17  18  19  20  21  22  21  22  23  24  25  26  27
                    28  29  30                 26  27  28  29  30  31     23  24  25  26  27  28  29  28  29  30  31
                   Name:

                   (a)  the number of months have exactly 30 days.

                   (b)  the number of months have 31 days.

                   (c)  two consecutive months having the same number of days in a year.

                   (d)  the total number of Fridays in the year.

                   (e)   all the months having 5 Saturdays and 5 Sundays.

                    (f)  the first day of the year.

                   (g)  the last day of the year.


              2.  tick () the leap years and cross () the years which are not leap years.


                     1200             1800          2018          2016           2023          1750           2024




              Mathematics-3                                                                                         181
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