79 乘法 81 等于多少？

79 × 80 = 6320 79 × 82 = 6478 79 × 83 = 6557 79 × 79 = 6241 79 × 84 = 6636 79 × 78 = 6162 79 × 85 = 6715 79 × 77 = 6083 78 × 81 = 6318 80 × 81 = 6480 77 × 81 = 6237 81 × 81 = 6561 76 × 81 = 6156 82 × 81 = 6642 83 × 81 = 6723 75 × 81 = 6075 81 × 79 = 6399 37 × 40 = 1480 12 × 63 = 756 49 × 56 = 2744 87 × 20 = 1740 100 × 84 = 8400 47 × 86 = 4042 98 × 39 = 3822 33 × 84 = 2772 93 × 97 = 9021 60 × 72 = 4320 80 × 82 = 6560 5 × 7 = 35