1 乘法 31 等于多少？

1 × 30 = 30 1 × 32 = 32 1 × 29 = 29 1 × 33 = 33 1 × 28 = 28 1 × 34 = 34 1 × 35 = 35 1 × 27 = 27 2 × 31 = 62 3 × 31 = 93 4 × 31 = 124 5 × 31 = 155 6 × 31 = 186 7 × 31 = 217 8 × 31 = 248 9 × 31 = 279 31 × 1 = 31 64 × 98 = 6272 72 × 94 = 6768 4 × 71 = 284 86 × 76 = 6536 19 × 58 = 1102 94 × 100 = 9400 86 - 55 = 31 78 - 47 = 31 29 + 2 = 31 69 - 38 = 31 86 × 90 = 7740 49 × 6 = 294 83 × 65 = 5395