51 乘法 81 等于多少？

51 × 80 = 4080 51 × 82 = 4182 51 × 83 = 4233 51 × 79 = 4029 51 × 84 = 4284 51 × 78 = 3978 51 × 85 = 4335 51 × 77 = 3927 50 × 81 = 4050 52 × 81 = 4212 49 × 81 = 3969 53 × 81 = 4293 48 × 81 = 3888 54 × 81 = 4374 47 × 81 = 3807 55 × 81 = 4455 81 × 51 = 4131 36 × 51 = 1836 62 × 59 = 3658 18 × 34 = 612 18 × 79 = 1422 100 × 53 = 5300 38 × 75 = 2850 12 × 10 = 120 100 × 2 = 200 83 × 90 = 7470 24 × 92 = 2208 13 × 73 = 949 49 × 33 = 1617