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21 st
                     Scratch Your Brain.                                                          Century   #Critical thinking
                                                                                                   Skills  #Communication
                     1.  Fill in the blanks with equivalent decimal numbers or binary numbers.
                         a.  (10101)                                     b.  (1111011)
                                                                                     2
                                  2
                         c.  (361) 10                                    d.  (6)
                                                                              10
                         e.  (101)                                        f.  (100101101)
                                                                                        2
                                10
                         g.  (1100)                                      h.  (165)
                                                                                 10
                                 2
                         i.  (1010001)                                    j.  (1101010)
                                    2                                                2
                     2.   Surf the Internet to find out the uses of the various number systems in different types of scenarios.
                        Discuss with your teacher.

                     3.  Competency-based/Application-based questions:
                         a.   Prashant noticed the given numbers while working, (256)  and (2AF) . Which number system do
                                                                                          16
                                                                                8
                           they belong to? How can he tell?
                         b.   A number system has made the representation of large values easy. It is made up of 16 symbols 0
                           to 9, and A to F. Which number system are we talking about?




                            Scan the QR code and attempt the quiz.





                                                                                     21 st
                       DIY In The Lab                                              Century   #Technology Literacy
                                                                                     Skills
               To
               Subject   Binary Operations

                Visit your computer lab and perform the following actions:
                     Find out the size of RAM of your computer and convert this decimal number into binary number.
                     Open any folder which contains Word, PowerPoint or image files and note down their sizes. Now
                   convert them into binary number.




              For The Teacher

                  Talk to the students about the importance of number systems and their uses 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 octal and hexadecimal number systems.













                  18  Plus (Ver. 4.0)-VII
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