A) (+3)+(-2)+(-5) = B) (-2)-(+1)-(+5) =C) (+4) + (-2)-(+3) =D) (+5)--3-(-1) =E) (+4) + (-6)-(+7)-(-6)
A) (+3)+(-2)+(-5) =B) (-2)-(+1)-(+5) =
C) (+4) + (-2)-(+3) =
D) (+5)--3-(-1) =
E) (+4) + (-6)-(+7)-(-6) + (+7) =
F) (-34-5)+(-6)+(+8)+ 4) =
G) +(-3+8)+(-3+8)+(5–6) =
H)-(-3-1)-(-6+4-1)-6-(-3+2)=
1)18-(-5-2-3)+20-(-6+8)-(-1-8+3)=
J)-32-1-(-12+14+7)+(-5-6-9+3)-17=
K) (+5).(+3)
L) (+ 15) = (-4 + 1)
1 Resposta
(-2)-(+1)-(+5) = (-2)-1+5 = (-3)+5 = 2
(+5)-(-3)-(-1) = 5+3+1= 9
(+4)+(-6)-(+7)-(-6)+(+7)= 4-6-7+6+7 = 4
(-3)-(-5)+(-6)+(+8)-(-4)= (-3) +5 -6+8+4 = 8
+(-3+8)-(-3+8)+(5-6)= (-3)+8+3-8+5-6 = (-1)
-(-3-1)-(-6+4-1)-6-(-3+2)= 3+1+6-4+1-6+3-2 = 2
18-(-5-2-3)+20-(-6+8)-(-1-8+3)= 18+5+2+3+20+6-8+1+8-3 = 54
-32-1-(-12+14+7)+(-5-6-9+3)-17= -32-1+12-14-7-5-6-9+3-17 = (-76)