Page 21 - ICSE Math 2
P. 21

Look at the given examples.

                      (a)  Compare 190 and 99.                              (b)  Compare 89 and 101.

                           190   >   99                                          89   <   101
                           (3 digits)    (2 digits)                              (2 digits)   (3 digits)


                      (c)  Compare 125 and 200.

                            1 2 5                                            2 0 0


                                  1 at the hundreds place                          2 at the hundreds place

                           Since 1 < 2, so 125  <  200.


                      (d)  Compare 125 and 127.
                            1  2 5                                           1  2 7


                                     1 at the hundreds place                           1 at the hundreds place

                                     2 at the tens place                               2 at the tens place

                           The digits at the hundreds and tens places are the same in both the
                           numbers. Thus, compare the digits at the ones place.


                           Since 5 < 7, so 125  <  127.

                     13.  Put the correct sign >, < or =.


                           (a) 149           150           (b)  166          106            (c)  153          135



                           (d) 118           181           (e)  129          129            (f)  136          119


                     14.  Write greater or smaller in the blanks.

                           (a) 148 is __________ than 132.  (b)  123 is __________ than 128.


                           (c) 182 is __________ than 192.  (d)  176 is __________ than 166.


                    Ordering of Numbers


                     •  Ascending (increasing) order means to write the given numbers from the
                          smallest to the greatest.

                     •  Descending (decreasing) order means to write the given numbers from

                          the greatest to the smallest.


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