42 乘法 21 等于多少？

42 × 20 = 840 42 × 22 = 924 42 × 19 = 798 42 × 23 = 966 42 × 24 = 1008 42 × 18 = 756 42 × 25 = 1050 42 × 17 = 714 41 × 21 = 861 43 × 21 = 903 40 × 21 = 840 44 × 21 = 924 39 × 21 = 819 45 × 21 = 945 38 × 21 = 798 46 × 21 = 966 9 × 98 = 882 14 × 63 = 882 18 × 49 = 882 21 × 42 = 882 49 × 18 = 882 63 × 14 = 882 91 × 100 = 9100 78 × 87 = 6786 75 × 14 = 1050 49 × 72 = 3528 15 × 75 = 1125 91 × 55 = 5005 65 × 64 = 4160 31 × 85 = 2635