Question

2. Determine o valor de cada soma algé-
brica:
a) 6 + (-9 + 1)
b) 8 - (-6 + 10)
c) -10 + (6 - 4)
d) 2 + (2 + 5 - 7)
e) -5 + (2 - 4) – (7 - 1)
f) (-5+ 3) - (5 – 9) + (8 -

Answer 1

a)-2

b)4

c)-12

d)2

e)-13

f)6