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SDG Activity



                    You are in charge of decorating your school’s Annual Day event with a limited
                    budget. To ensure efficient use of resources, make a list of supplies with their
                    quantities and calculate the total cost. Convert the total price into binary and
                    count the number of digits. Compare whether there are more digits in the
                    decimal or binary representation.






                                                                                                  21 st
                                                                                                Century   #Communication
                                                                                                 Skills

                   Organise a group discussion and discuss about the various number systems.





                                                                                                 21 st   #Technology Literacy
                                                                                               Century
                  Lab Session                                                                    Skills  #Information Literacy


                      Solve the following:
                      1.  Convert (10111011)  into its decimal equivalent.
                                             2
                      2.  Subtract (1101)  from (100110) .
                                        2               2
                      3.  Add the following binary numbers.
                          a.  (1000)  and (101)               b.  (1011)  and (101)       c.  (1001)  and (101)
                                  2          2                         2         2                 2          2
                          d.  (1111)  and (1111)              e.  (11001)  and (10101)
                                   2          2                         2            2
                      4.  Convert the following decimal numbers into binary.
                          a.  (19)                            b.  (98)                    c.  (75)
                                10                                  10                           10
                          d.  (37)                            e.  (54)
                                10                                  10


                 Teacher's Note

                   1.  Talk to the children about the importance of number systems and their use in computers.
                   2.   Do a detailed walk-through of the decimal and binary number systems and their different operations in a

                     mathematically rigorous manner.
                   3.  Give a brief on octal and hexadecimal number systems.













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