30 乘法 1 等于多少？

30 × 2 = 60 30 × 3 = 90 30 × 4 = 120 30 × 5 = 150 30 × 6 = 180 30 × 7 = 210 30 × 8 = 240 30 × 9 = 270 29 × 1 = 29 31 × 1 = 31 28 × 1 = 28 32 × 1 = 32 33 × 1 = 33 27 × 1 = 27 34 × 1 = 34 26 × 1 = 26 1 × 30 = 30 2 × 15 = 30 3 × 10 = 30 5 × 6 = 30 6 × 5 = 30 10 × 3 = 30 51 × 40 = 2040 15 × 15 = 225 70 × 86 = 6020 92 × 5 = 460 91 × 6 = 546 62 × 71 = 4402 46 - 16 = 30 37 - 7 = 30