Question

Resolva:

a) 8-(+4-1)=
b) -5-(-2+3-1)=
c) 189+(-1+8+2)=
d) 20-(-6-1+7)=
e) 14+(+7)+(-6+4)=
f) 15-(2-4)-6=
g) 5+(6-8)+4=
h) 6-(-3-1)-2=
i)-(2-5)-(-3+8)-1=
j) -(10+1) - (-3) +5-2=

Answer 1

a)
8 - ( +4 - 1)= 8 - ( +3)=8 - 3 = +5
b)
-5 - (-2 + 3 - 1)= -5 - ( -3 + 3)= -5 - ( 0 )= -5
c)
189 + ( -1 + 8 + 2)= 189 + ( - 1 + 10)= 189 + ( 10)=189 +10=199
d)
20 - ( -6 - 1 +7)=20 - ( -7 +7)= 20 - ( 0 ) = 20
e)
14+ ( +7) + ( -6 +4)=14 +7 + ( -2 )= 14 +7 -2 = 21 -2= 19
f)
15 - (2 -4) -6= 15 - (-2) -6=15 +2 -6= 17 -6=11
g)
5 + ( 6 -8) +4= 5 + ( -2 ) +4= 5 -2 +4=9 -2= 7
h)
6 - (-3 -1) -2= 6 - (-4) -2= 6 -(-4)-2=6 +4 -2= 10 -2 = 8
i)
- ( 2 -5)- ( -3 +8) -1= - (-3) -( +5) -1= +3 -5 -1= +3 -6 = -3
j)
- ( 10 +1 ) - ( -3) +5 -2= - ( 11) + 3 + 5 - 2= - 11 +3 +5 -2= -13 + 8=  -5

Answer 2

A) 8-(+4-1) = 8-3 =5
B) -5-(2+3-1) = -5-4 = -9
C) 189+(1+8+2) =189+11=200
D) 20-(6-1+7)=20-12=8
E) 14+(+7)+(-6+4)=14+7+(-2)=14+7-2=19
F) 15-(2-4)-6=15-(-2)-6=15+2-6=11
G) 5+(6-8)+4=5+(-2)+4=5-2+4=7
H) 6-(-3-1)-2=6-(-4)-2=6+4-2=8
I) (2-5)-(-3+8)-1=(-3)-5-1=-3-5-1=-9
J) -(10+1)-(-3)+5-2=-11+3+5-2=-5