Question

2. Determine o valor de cada soma
algébrica:
a) 8 – (-6 + 10)
b) -10 + (6 – 4)
c) 2 + (2 + 5 – 7)
d) -5 + (2 – 4) – (7 – 1)
e) (-5 + 3) – (5 – 9) + (8 – 1) – 11​

Answer 1

02.
A) 8+6-10 =
14-10 =
4

B) -10+6-4 =
-14+6 =
-8

C) 2+2+5-7=
9-7 =
2

D) -5+2-4-7+1 =
-3-11+1 =
-13

E) -5+3-5+9+8-1-11 =
-2+4+7-11 =
+2-4 =
-2