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    Recap

                               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

                         Choose the correct option.

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

                             picture, letter, or a                    .
                                    a.  Pattern                                   b.  Sequence

                                    c.  Instruction                               d.  Decoding

                         2.   If       1          2          3  then the secret message

                             will be decoded as                       .
                                    a.  1223113                                   b.  2132311

                                    c.  2132113                                   d.  2131223

                          Tick ( ) the correct statements and cross ( ) the wrong ones.

                         1.   In a number pyramid, the number in each space is the sum of the

                             two numbers below it.
                         2.  In the number grid, each grid is replaced by the sum of the numbers in it.

                    Q    Answer the following questions:
                      A
                         1.  What is the process of converting a hidden message to a meaningful text?

                         2.   Your friend, Arjun, wrote BAT as TAB; then how will you write the word CAR using his
                             secret code?

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