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1. Reprodu si completeaza tabelul, efectuand calculele mintal:a+(+9)-> 15 , -4 ,-9,-19,0,9,
si a+(-9)->9,7,0,-6,-9,20​


1 Reprodu Si Completeaza Tabelul Efectuand Calculele Mintala9gt 15 4 91909si A9gt9706920 class=