84 乘法 81 等于多少？

84 × 80 = 6720 84 × 82 = 6888 84 × 83 = 6972 84 × 79 = 6636 84 × 84 = 7056 84 × 78 = 6552 84 × 85 = 7140 84 × 77 = 6468 83 × 81 = 6723 85 × 81 = 6885 82 × 81 = 6642 86 × 81 = 6966 87 × 81 = 7047 81 × 81 = 6561 88 × 81 = 7128 80 × 81 = 6480 81 × 84 = 6804 34 × 26 = 884 5 × 12 = 60 42 × 13 = 546 12 × 42 = 504 87 × 75 = 6525 78 × 30 = 2340 12 × 23 = 276 22 × 93 = 2046 3 × 5 = 15 64 × 51 = 3264 37 × 76 = 2812 40 × 2 = 80