Question

10) Efetue as operações.
a) (-9) + (-3) =
b) (-6) + (-8) =
c) (+8) + (+6) =
d) (+12) + (-12) =
e) (-6) - (+5) =
f) (+9) - (- 9) =
g) (+6)-(-5) =
b) (-3)+(-8)=





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Answer 1

a)-9-3= -12

b)-6-8= -14

c)8+6= 14

d)12-12= 0

e)-6-5= -11

f)9+9= 18

g)6+5= 11

h)-3-8= -11