83                                 94

      56                                 19

   --------                            --------

    498                                846

  415                                  94

----------                           ----------

  4648                              1786

   549 - 375 + 24 х 3 = 246

    24              549           174

   *  3            -375          + 72

   -----         ----------       -------

    72              174           246

  6842 - 476 + 938 = 7304

    6842            6366

  -   476          +  938

   --------        -----------

    6366            7304

       42                                        58

     *   70                                   *    90

     --------                                 ---------

     2940     :  60                         5220      :   30

     24          ---------                    3             ---------

    -----------    49                       --------          174

       54                                       22

       54                                       21

    --------                                   ------

         0                                          12

                                                     12

                                                  --------

                                                        0