Page 18 - TP_Pluse_V2.2_Class_7
P. 18

5.  (361) 10                                                   1

                       7.  (6)                                               3
                             10
                                                       2                     1       1
                      Across
                       2.  (101) 10                                                  5

                       4.  (100101101) 2                                 4  3        1
                       6.  (1100) 2                                                                        7

                       8.  (165)                                                  6  1
                               10                                                8   1                     1
                       9.  (1010001)
                                    2
                      10.  (1101010)
                                   2
                                                                             9


                                                                            10       0




                      Let's exPLore

                        Surf the Internet to find out the uses of the various number systems   Century   #Information Literacy
                                                                                                21 st
                      in different types of scenarios. Discuss with your teacher.              Skills

                                                                                                21 st
                      Let's get Better                                                        Century   #Communication
                                                                                                Skills
                      Organise a group discussion and discuss about the various number systems.


                      teCh PraCtiCe                                                          21 st
                                                                                          Century   #Critical Thinking
                                                                                            Skills
                      Solve the following:
                      1.  Convert (10111.011)  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
                                                          For The Teacher
                         Talk to the students about the importance of number systems and their use in computers.
                          Do a detailed walk-through of the decimal and binary number systems and their different operations in a
                        mathematically rigorous manner.
                         Give a brief on the octal and hexadecimal number systems.


                  16    Plus (Ver. 2.2)-VII
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