Ответ:5 + 9 = 14.9 + 2 = 11.8 + 9 = 17.13 − 8 = 5.15 − 9 = 6.16 − 7 = 9.14 − 8 + 40 = 6 + 40 = 46.12 − 3 + 80 = 9 + 80 = 89.18 − 4 + 60 = 14 + 60 = 74.