Page 8 - 新思维数学活动用书5 样章
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1.1  Understanding place value



              Exercise 1.1

              Focus

              1  Write the missing numbers in this sequence.                             Tip

                                                                                         You may find
                    1900                        19
                              ÷ 10                      ÷ 10                             a place value
                                            ÷ 10                      ÷ 10               grid helpful for
                                  190                                                    these questions.



              2  Write these numbers in digits.


                 a   fifteen point three seven


                 b   one hundred and five point zero five

                 c   thirty four point three four


              3  Write the missing numbers.


                 a                             75
                                                             ×100


                     ×



                                                             ×10





                 b
                                             25 000
                                                             ×10


                     ÷



                                                             ÷100
















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