Question

3-) Calcule: a) – 7 + 17 =___________ b) +16 – 10 = ____________ c) –1 + 1= _____________ d) –3 – 16 =___________ e) 9 – 22 = ______________ f) 6 – 21= _____________

Answer 1

Resposta:

A) 10

b) 6

C) 0

d) -19

e) -13

f) -15

Answer 2

a) – 7 + 17 = 10

b) +16 – 10 = 6

c) –1 + 1 = 0

d) –3 – 16 = -19

e) 9 – 22 = - 13

f) 6 – 21= - 15