1.    Calcule o valor das expressões (primeiro as potências):

    35 + 5²=                               50 - 4² = 

  a) (   ) +65                              a) (   ) -66

  b) (   ) – 65                             b) (   ) +66

  c) (   ) +60                              c) (   ) –34

  d) (   ) – 55                             d) (   ) +30

  e) (   ) +50                              e) (   ) +34