9 乘法 21 等于多少？

9 × 20 = 180 9 × 22 = 198 9 × 19 = 171 9 × 23 = 207 9 × 24 = 216 9 × 18 = 162 9 × 25 = 225 9 × 17 = 153 8 × 21 = 168 10 × 21 = 210 11 × 21 = 231 7 × 21 = 147 12 × 21 = 252 6 × 21 = 126 13 × 21 = 273 5 × 21 = 105 3 × 63 = 189 7 × 27 = 189 21 × 9 = 189 27 × 7 = 189 63 × 3 = 189 89 × 23 = 2047 32 × 79 = 2528 77 × 67 = 5159 44 × 29 = 1276 49 × 90 = 4410 73 × 20 = 1460 97 + 92 = 189 98 + 91 = 189 100 + 89 = 189