Question

Aplique a Regra de sinais e resolva as operações
-(-4+5)=
+(-9+4-1)=
-(-2+3+2)=
+(+5-8)=
+(+7-9)=
(-9+4)+(-5+6)=
(-8+7)-(-6+8)=
(-7+6-1)+(8+5+8+10)=
-(+8-5+4-6)+(-4-9)=
-(-6)+(-8)-(-9)=

Answer 1

a) 9

b) -6

c) 7

d) -3

e)-2

f)-5+1= -4

g)-1-2=-3

h)-2+31=29

i)-15+13=-2

j) 7