Răspuns:
Tabelul 1
coloana 1) 65216-43680=21536 aflam b
coloana 2) 22158-6155=16003 aflam a
coloana 3) 30170-5481=24589aflam b
tabelul 2
coloana 1) 4019+5138=9157 aflam a
coloana 2) 34922-15185=19737aflăm b
coloana 3) 35142+1797=36939 aflam a