Răspuns :

Pentru a scrie mai rapid am facut tabelul invers.

a = 8, 9, 12, 10, 20, 36, 55, 15, 96

b = 2, 3, 4, 5, 5, 3, 5, 5, 6

a+b = 10, 12, 16, 15, 25, 39, 60, 20, 102

a-b = 6, 6, 8, 5, 15, 33, 50, 10, 90

a*b = 16, 27, 48, 50, 100, 108, 275, 75, 576

a:b = 4, 3, 3, 2, 4, 12, 11, 3, 16