Respuesta:
A) 8-24:(-1 - 5) + (-20 : 4 + 7) . (-7)
8 -24 : (+4) + (-5 + 7) .(-7)
8 - 6 + 11 .(-7)
8 -6 -77 = -63
B) -10 + (9.3 + 6.5).6 + (-15 +6)
-10 + (27 + 30) .6 + (-19)
-10 + 3 .6 (-19)
-10 +18 -19 = -9
C) (14 - 8.3): (9-11) + 100 : (-8-2)
(14 - 24) : (2) + 100 : (+6)
(+1) : 2 + 100 : (+6)
-2 +16 = +14
