8 乘法 21 等于多少？

8 × 20 = 160 8 × 22 = 176 8 × 19 = 152 8 × 23 = 184 8 × 24 = 192 8 × 18 = 144 8 × 25 = 200 8 × 17 = 136 7 × 21 = 147 9 × 21 = 189 6 × 21 = 126 10 × 21 = 210 11 × 21 = 231 5 × 21 = 105 12 × 21 = 252 4 × 21 = 84 2 × 84 = 168 3 × 56 = 168 4 × 42 = 168 6 × 28 = 168 7 × 24 = 168 12 × 14 = 168 93 × 67 = 6231 96 × 87 = 8352 24 × 88 = 2112 10 × 34 = 340 93 × 21 = 1953 14 × 31 = 434 68 + 100 = 168 89 + 79 = 168