Page 94 - ICSE Math 1
P. 94

Backward Counting


                    We know that coun  ng backward is like going down the stairs or coun  ng from

                    the biggest to the smallest.

                    Example: 99, 98, 97, 96, 95


                     14.  Using backward coun  ng, fi ll in the blank spaces.



                                        99      98                               94


                               90                               86                               82


                                                78                                       73


                               70                       67                                       62



                                        59                              55                               51


                               50                               46                       43


                                                38                               34                      31



                                        29                              25


                               20                       17                                       12


                                                 8                                                        1



                     15.  Find the missing numbers.


                           (a)     90                             87



                           (b)     82                 80


                           (c)             63                     61



                           (d)     53                 51


                           (e)             45                                            41


                 84
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