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                    07                                          REASONING AND ANALYSIS














                         Your Aim
                         to learn about:

                               Number Pyramid                          Number Grid
                                 Secret Message: Decoding





                     NUMBER PYRAMID


                 In a number pyramid,  the number
                 in each  space is the sum of the two
                 numbers below it.                                                         9

                     Start with a space, which has two
                     filled adjoining spaces below it.                                5         4

                       Here  blue  circle is  the sum  of
                     two green circles.Therefore, blue

                     circle is 2 + 1 = 3.                                       3          2         2

                     We can get the remaining numbers
                     by following the same pattern.                        2          1         1         1


                     NUMBER GRID

                 In a number grid each grid is replaced by the value of its result. Let us start filling
                 the numbers in the grid by solving each grid.
                     We usually start with the number at the centre. Here, it is 30.




                                   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?




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