10 加法 11 等于多少？

10 + 10 = 20 10 + 12 = 22 10 + 13 = 23 10 + 9 = 19 10 + 14 = 24 10 + 8 = 18 10 + 15 = 25 10 + 7 = 17 11 + 11 = 22 9 + 11 = 20 12 + 11 = 23 8 + 11 = 19 13 + 11 = 24 7 + 11 = 18 14 + 11 = 25 6 + 11 = 17 1 + 20 = 21 2 + 19 = 21 3 + 18 = 21 4 + 17 = 21 5 + 16 = 21 6 + 15 = 21 60 + 30 = 90 64 + 31 = 95 31 + 26 = 57 42 + 46 = 88 3 + 75 = 78 3 + 24 = 27 64 - 43 = 21 26 - 5 = 21