Question

ajuda pessoa agradeço​

Answer 1

Resposta:

a)2 d)-27 g)-130

b)-12 e)-1 h)15

c)100 f)9

Explicação:

a)(+11)+(-9) = 11-9 = 2

b)(-72)+(+60) = -72+60 = -12

c)(+130)+(-30) = 130-30 = 100

d)(-75)+(+48) = -75+48 = -27

e)(-21)+(+20) = -21+20 = -1

f)(-100)+(+109) = -100+109 = 9

g)(+91)+(-221) = 91-221 = -130

h)(-85)+(+100) = -85+100 = 15