Question

1 Calcule: a) (+7) + (-4) = b) (+8) + (+2) = c) (−8) + (+2) = て d) (+6) + (-5) =_ e) (-3) + (-7)=. f) (−7) + (+7) = g) (-2) + (+5) = h) (+3) + (−4) =​

Answer 1

Resposta:

a) +3

b) +10

c) -6

d) +1

e) -10

f) 0

g) +3

h) -1