решите 1 столбик и 3 столбиком а 2 прощитыввать внизу столбиком тоже

 

83х56         549-375+24х3              42х70:60

 

94х19         6842-476+938             58х90:30

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Ответ:

      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