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@ @Hßìÿa@ö§aI@†a‡Èÿa@óî‹Åä@@

20 ( )               18 ( )   16 ( ) 14 ( )
                              [Maclaurin 2006] ( )

                                               35

35 ( )    30 ( )              25 ( ) 20 ( )

                     100 [MAӨ 2009] (                       )
                                                            )
                     .11 7                                  )
                                                            )
2848 ( )  2664 ( )           2464 ( )          2448 ( )

          317 + 713                      [Aust.MC 1995] (

7() 3( ) 1( )                                      0 ()

n x = (n +1) (n + 2) (n + 3)             [Aust. MC 1978] (

x.

6() 5( )                                 3( )      2 ()

                              [British SMC 2002] (

                     6 123456789 × 987654321

4() 3( )                                 2( )      1 ()

٧٧
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