1)Calcule

a) (-10) - (+6) =

b) (-10) - (-6) =

c) (+10) - (+6) =

d) (+10) - (-6) =

e) (-15) - (+9) =

f) (+12) - (-8) =

g) (+14) - (+21) =

h) (-18) - (- 24) =

i) (-20) - (+25) =

j) (-1) - (-5) =

k) (+10) - (+10) =

l) (-8) - (-8) =

MUITO OBRIGADA S2
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