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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

                                                          3           2           2

                                                    2           1           1           1

                         In a number pyramid, you add the numbers below to find the number above.

                     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.

                                                                                         Reasoning and Analysis   37

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