Ответ: 1) 56 + 4 + 11 +9 = 60 + 20 = 802) 22 + 8 + 13 + 7 = 30 + 20 = 503) 46 + 4 + 15 + 5 = 50 + 20 = 704) 31 + 9 + 16 + 4 = 40 + 20 = 60