Ответ:9 + 7 = 16.23 − 3 = 20.30 + 6 + 1 = 36 + 1 = 37.15 − 7 + 3 = 8 + 3 = 11.18 − (4 + 6) = 18 − 10 = 8.25 − (15 − 10) = 25 − 5 = 20.