profile
Опубликовано 5 лет назад по предмету Математика от Dianadiana999

(Решите столбиком пожалуйста) а) (21,2544:0,9+1,02*3,2) : 5,6 = б) 4,36:(3,15+2,3)+(0,792-0,78)*350= в) (3,91:2,3*5,4-4,03)*2,4= г) 6,93:(0,028+0,36*4,2)-3,5=

  1. Ответ
    Ответ дан marinanik21

    г)0,36          0,028      6,93/1,54=693  / 154           4,5

         4,2          1,512                       616   4,5             3,5

          72          1,54                            770                  1,0

     144                                                770

     1,512                                                 0

  2. Ответ
    Ответ дан levinech

    а) 1)212.544    ÷ 9                                  2)  1,02           3)  23,616             4)268,8    ÷56

             18                  23,616                          ×3,2                 +  3,264                  224        4,8

               32                                                          204                 26,880                   448

                27                                                       306                                                   448

                  55                                                     3,264                                                  0

                  54

                    14

                      9

                      54

                       54

                        0

     

    б) 1)3,15+2,3= 5,45

    2)4360     ÷  545                       3)  0,792

       4360         0,8                           -0,78

          0                                            0,012

     

    4) 0,012        5) 0,8+4,2=5

      ×350

           60

         36

        4,200

     

     

    в) 1)  39,1   ÷  23                       2)    1,7       3) 9,18-4,03= 5,15   4)  5,15

             23         1,7                           ×5,4                                       ×2,4

             161                                          68                                         2060

             161                                         85                                        1030

              0                                          9,18                                      12,360

     

     

    г)    1)  0,36       2) 0,028+1,512=1,54     3)  693  ÷154                4) 4,5-3,5=1

              ×4,2                                                616    4,5

                 72                                                  770

             144                                                    770

             1,512                                                   0