28 加法 71 等于多少？

28 + 70 = 98 28 + 72 = 100 28 + 69 = 97 28 + 73 = 101 28 + 74 = 102 28 + 68 = 96 28 + 75 = 103 28 + 67 = 95 29 + 71 = 100 27 + 71 = 98 30 + 71 = 101 26 + 71 = 97 31 + 71 = 102 25 + 71 = 96 32 + 71 = 103 24 + 71 = 95 1 + 98 = 99 2 + 97 = 99 3 + 96 = 99 4 + 95 = 99 5 + 94 = 99 6 + 93 = 99 66 + 30 = 96 20 + 68 = 88 45 + 51 = 96 26 + 73 = 99 30 + 16 = 46 27 + 32 = 59 1 × 99 = 99 33 × 3 = 99