Question

1) Resolva as adições: a) 8 + (7 – 1) – (- 3 + 1 – 5) = b) 10 – 3 + 1 – (- 2 + 6) = c) 15 – (3 – 2) + (7 – 4) = d) (9 – 4 + 2) – 1 + (9 + 5 – 3) =

Answer 1

Resposta:

a)21

b)4

c)17

d)17

espero estar certo fiz na correria