Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 79 - 2615_KEC
P. 79

    What if you could use computer to create secret codes that only your

                                       friends could decode? What would your code say and how would
                                       you use it to communicate?

                                              1.   When you have a message that looks like this: "HAPYP,"
                                                  what do you do to make it readable?

                                                  a.  Colour it                   b.  Decode it
                                              2.   In number grid, do we usually start with the number at
                             uiz    Bee           the centre?

                                                  a.  Yes                         b.  No

                          REVISIT

                       ▶   In a number pyramid, the number in each space is the sum of the two numbers
                          below it.
                       ▶  In a number grid each grid is replaced by the value of its result.

                       ▶   Decoding is the process of converting a hidden message to a meaningful text.

                                                         ASSESS YOURSELF

                     1.  Tick ( ) the correct option.

                        a.   The hidden  message  or secret  message  can be in the form of a symbol,
                            number, picture, letter or a                         .

                              (i)  Pattern                                  (ii)  Sequence

                             (iii)  Instruction                             (iv)  Decoding

                        b.   If       1          2          3  then the secret message

                            will be decoded as                         .

                              (i)  1223113                                  (ii)  2132311

                             (iii)  2132113                                 (iv)  2131223

                                                                                                Reasoning and Analysis  77

| 74 75 76 77 78 79 80 81 82 83 84 |