Matematika

Pertanyaan

penyelesaian nya, mkasih
penyelesaian nya, mkasih

2 Jawaban

  • 1. 36 + 21 = 57
    Cara =>
    36
    21
    ----- +
    57

    2. -40 + 24 = -16
    3. 28 - ( -17 )
    = 28 + 17
    = 45
    4. 25 + ( -43 ) = -18
    5. -35 - 12 = -47

    Catatan :
    + x + = +
    + x - = -
    - x + = -
    - x - = +
  • 1. 36 + 21
        = 57.
    2. (-40) + 24
        = - (40 - 24)
        = - (16)
        = -(16).
    3. 28 - (-17)
        = 28 + 17
        =  45.
    4. 25 + (-43)
        = 25 - 43
        = - (43 - 25)
        = - (18)
        = (-18).
    5. (-35) - 12
        = - ( 35 + 12)
        = - (47)
        = (-47).