Ответ:12,5 + 5,9 = 18,4.18,74 + 3,30 = 22,04.6,6 + 14 = 20,6.13,720 + 24,318 = 38,038.4,18 + 7,52 = 11,70.43,523 + 36,477 = 80.Ответ: 18,4; 22,04; 20,6; 38,038; 11,70; 80.