31 加法 90 等于多少？

31 + 89 = 120 31 + 91 = 122 31 + 92 = 123 31 + 88 = 119 31 + 93 = 124 31 + 87 = 118 31 + 94 = 125 31 + 86 = 117 30 + 90 = 120 32 + 90 = 122 29 + 90 = 119 33 + 90 = 123 28 + 90 = 118 34 + 90 = 124 35 + 90 = 125 27 + 90 = 117 21 + 100 = 121 22 + 99 = 121 23 + 98 = 121 24 + 97 = 121 25 + 96 = 121 26 + 95 = 121 5 + 45 = 50 55 + 38 = 93 58 + 14 = 72 90 + 40 = 130 61 + 56 = 117 61 + 71 = 132 11 × 11 = 121 34 + 49 = 83