ÁNGEL Y LOS NÚMEROS ENTEROS

(+68.957) + (50.677) = (+119.634)

(-79.653) + (-65.893)= (-145.646)                                                    

(+80.293) + (-82.196) = (1.903)

(- 65.893) + (-99.357)= (-164.899)

(+89.025) + (+20.637) = (+109.662)