Question

responde aí só as que tão marcada com o (x)​

Answer 1

a) +3-2-5= -4

b) -2-1-5= -8

c) +4-2-3= -1

d) +5+3+1= 9

e) -5-6+2-3= -12

f) +2+3-5+9= 9

g) -2-1+7-4= 0

h) -5-6+2-3= -12

i) +9+2-1+3= 13

j) +9+7-11= 6