$(-2)^3 . (-2)^2 +32 = -8 . 4 +32 = -32 + 32 = 0$
$-15 . 12 - 8(-12) = 12(-15+8) = 12 . (-7) = -84$
$-9 - 13 - (-24) + 11 = -24 +24+11 = 11$
$323 - 6[3 - 7(-9)] = 323 - 6.66 = 323 - 396 = -73$
$(-3)^5 : (-3)^3 - 9 = (-3)^2 - 9 = 9 - 9 = 0$
$(-8) . 16 - 13 . 8 = (-8)(16+13) = -8 . 29 = -232$