28 乘法 30 等于多少？

28 × 29 = 812 28 × 31 = 868 28 × 28 = 784 28 × 32 = 896 28 × 33 = 924 28 × 27 = 756 28 × 34 = 952 28 × 26 = 728 29 × 30 = 870 27 × 30 = 810 30 × 30 = 900 26 × 30 = 780 31 × 30 = 930 25 × 30 = 750 32 × 30 = 960 24 × 30 = 720 10 × 84 = 840 12 × 70 = 840 14 × 60 = 840 15 × 56 = 840 20 × 42 = 840 21 × 40 = 840 82 × 19 = 1558 97 × 45 = 4365 53 × 38 = 2014 22 × 87 = 1914 38 × 61 = 2318 28 × 25 = 700 67 × 1 = 67 18 × 38 = 684