Page 18 - 新思维数学活动用书2 样章
P. 18

1.2  Counting up to 100 objects


              9   How many beans are in the collection?


                    Estimate then count to check.


                                                                                Estimate


                                                                        10      20      50     100



                                                                                  Count







                    Compare your estimate and count with another person’s.

                    Do you both agree?

              10  Tick the correct sentences.



                                                                           Numbers
                      An even                 2 more than              with 1, 3, 5, 7 or

               number of objects            an odd number                  9 ones are
                can be sorted into         is always an odd             even numbers.

                 2 equal groups.                 number.                                     0 is an odd


                                                                                               number.



































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