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Let us now learn about number pyramid, number grid and decoding in this chapter.
                 Number Pyramid


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

                   Start with a circle, which has two filled adjoining circles below it.
                   Here, blue circle is the sum of two green circles.

                   Therefore, blue circle is 2 + 1 = 3.
                    We can get the remaining numbers by following the same pattern.






                                              9




                                         5        4                           In a number pyramid, you add
                                                                              the numbers below to find the
                                                                              number above.
                                    3         2        2



                               2         1        1         1






                       code Quest                                                     Critical Thinking


                      Help the boy reach the top of the pyramid by filling the missing spots.





















                                                 5          6          9         17








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