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37) Calcula.
a) 6 + 15 + (7 + 2)2 =
b) 8 + [4 - 13 + 5)2 =
c) 10 - [6 + (2 + 7) =
d) 15-12-(6 - 10)] =
e) 15 - [10 - (8 + 4)] =
f) 12 - 17 - 12 - 10)] =
g) (-6 ) + [5+ (2 - 12) =
h) (-7) - 13 - 14 - 9)2 =​