20 乘法 51 等于多少？

20 × 50 = 1000 20 × 52 = 1040 20 × 49 = 980 20 × 53 = 1060 20 × 48 = 960 20 × 54 = 1080 20 × 47 = 940 20 × 55 = 1100 19 × 51 = 969 21 × 51 = 1071 22 × 51 = 1122 18 × 51 = 918 23 × 51 = 1173 17 × 51 = 867 24 × 51 = 1224 16 × 51 = 816 12 × 85 = 1020 15 × 68 = 1020 17 × 60 = 1020 30 × 34 = 1020 34 × 30 = 1020 51 × 20 = 1020 38 × 69 = 2622 4 × 100 = 400 90 × 16 = 1440 98 × 81 = 7938 89 × 63 = 5607 62 × 52 = 3224 50 × 40 = 2000 100 × 70 = 7000