Operaciones con Signos

15 - 75 =

- 67 - 15 =

- 45 + ( - 60 ) =

30 - ( - 28 ) =

80 - 100 =

( - 36 ) / ( 9) =

( - 15 ) ( - 4 ) =

- 15 + 55 =

( - 120 ) / ( - 6 ) =

( 5 ) ( - 8 ) =

- 4

- 20

60

20

58

- 105

-60

40

- 82

- 40