99 乘法 21 等于多少？

99 × 20 = 1980 99 × 22 = 2178 99 × 19 = 1881 99 × 23 = 2277 99 × 24 = 2376 99 × 18 = 1782 99 × 25 = 2475 99 × 17 = 1683 98 × 21 = 2058 100 × 21 = 2100 97 × 21 = 2037 96 × 21 = 2016 95 × 21 = 1995 94 × 21 = 1974 93 × 21 = 1953 92 × 21 = 1932 21 × 99 = 2079 27 × 77 = 2079 33 × 63 = 2079 63 × 33 = 2079 77 × 27 = 2079 57 × 27 = 1539 64 × 41 = 2624 5 × 56 = 280 76 × 1 = 76 58 × 99 = 5742 84 × 31 = 2604 91 × 56 = 5096 62 × 96 = 5952 70 × 88 = 6160