Page 187 - ICSE Math 4
P. 187

Exercise 14.2




                                                                              1   2    3   4   5    6   7    8   9 10
                     1.  Iden  fy the pa  ern rule in the given              11 12 13 14 15 16 17 18 19 20
                           number pa  ern.
                                                                             21 22 23 24 25 26 27 28 29 30


                     2.  Iden  fy the pa  ern in each of the following number line by skip coun  ng. Also,
                           write the pa  ern rule.



                           (a)
                                     1    2   3    4    5   6    7    8   9   10   11   12  13   14   15   16



                           (b)
                                     1   2    3   4   5    6   7    8   9   10 11    12 13 14 15      16 17

                      3.  Complete the following shape pa  erns.


                           (a)                                                           _______ ___ _______ ___





                           (b)
                                                                      __________ __________ __________


                    Growing Number Pattern

                    In a growing number pa  ern, the pa  ern grows due to the addi  on of a new number
                    or an element to the already exis  ng number pa  ern. Let’s consider some examples to

                    understand this.
                    Example 3:  Find the next number or element of the following pa  erns and write the rule.

                                  (a)  24, 30, 36, 42, 48, 54,                      (b)  2, 4, 8, 16, 32, 64,

                    Solu  on:   (a)   In the given number pa  ern, we can see that the numbers are arranged
                                       in an increasing order. The rule followed in this pa  ern is to start from
                                       24 and add 6 each   me to the previous number or the sum obtained.


                                        24          30           36           42          48           54         _____


                                              +6          +6           +6           +6           +6           +6

                                       Therefore, the required number in the given number pa  ern is 54 + 6 = 60.


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