1. 26.
    0
    1453
    Tan45 = 1
    53-14=39
    39+1=40
    ···
  2. 27.
    0
    1453-1413 kırk yapar
    ···
  3. 28.
    0
    3x5:15
    4x5:20
    5x1:5
    ... +
    ... 40 yaparrrr
    ···