Annaclaragehlensoarego Annaclaragehlensoarego Matemática Respondido a) (+ 6) + (– 1) + (– 5) + (– 3) = b) (– 10) – (– 2) – (+ 4) – (– 1) = c) (– 4) – (+ 2) – (– 1) + (– 5) = d) (+ 3) – (– 2) + (– 9) + (– 5) = e) (– 10) – (– 2) + (+ 4) – (+ 8) + (+ 1) =