1) Resolva as expressões:
a)25 +{V64 + 53 x [7 + (4 + 2)]}
b)60 = {2 - [18 + 7 = (12-7)]} + [7.3 – 18 = 2 + 1] =
c)8 + {5+ [(12-8) + (13 + 12)] - 10) =
d)23 + {2 + (15-11) + [5 + (3 + 1)] + 8} =
e) [1 + (22-5.6)] = (1 + 2) + 1 =
f)[ (24-8). 2-24] = [2 2 + (3 - 2)2 =
g) {[(8. 4 + 3) = 7 + (3 + 15 = 5) - 3] . 2 + (5–7)=6} - 2 + 12 =​