Question

Queria saber o resultado dessas expressões:
a) 15-(3-2)+(7-4) =
b) 25-(8-5+3)-(12-5-8) =
c) (10-2)-3+(8+7-5) =
d) (9-4+2)-1+(9+5-3) =
e) -6-[10+(-8-3)-1] =
h) -8-[-2-(-12)+3] =
i) 25-{-2+[6+(-4-1)]} =
j) 17-{5-3+[8-(-1-3)+5]} =
k) 3-{-5-[6+(-4-1)]} =
l) -10-{-2+[+1-(-3-5)+3]} =

Answer 1

a) 15-(3-2)+(7-4)
15-1+3
17

b) 25-(8-5+3)-(12-5-8)
25-6-(-1)
25-6+1
20

c) (10-2)-3+(8+7-5)
8-3+10
15

d) (9-4+2)-1+(9+5-3)
7-1+11
17

e) -6-[10+(-8-3)-1]
-6-[10-11-1]
-6-[-2]
-6+2
-4

h) -8-[-2-(-12)+3]
-8-[-2+12+3]
-8-13
-21

i) 25-{-2+[6+(-4-1)]}
25-{-2+[6-5]}
25-{-2+1}
25+1
26

j) 17-{5-3+[8-(-1-3)+5]}
17-{5-3+[8+4+5]}
17-{5-3+17}
17-19
-2

k) 3-{-5-[6+(-4-1)]}
3-{-5-[6-5]}
3-{-5-1}
3+6
9

l) -10-{-2+[+1-(-3-5)+3]}
-10-{-2+[+1+8+3]}
-10-{-2+12}
-10-10
-20