21 乘法 3 等于多少？

21 × 2 = 42 21 × 4 = 84 21 × 1 = 21 21 × 5 = 105 21 × 6 = 126 21 × 7 = 147 21 × 8 = 168 21 × 9 = 189 20 × 3 = 60 22 × 3 = 66 19 × 3 = 57 23 × 3 = 69 24 × 3 = 72 18 × 3 = 54 25 × 3 = 75 17 × 3 = 51 1 × 63 = 63 3 × 21 = 63 7 × 9 = 63 9 × 7 = 63 63 × 1 = 63 2 × 89 = 178 6 × 49 = 294 69 × 68 = 4692 8 × 84 = 672 24 × 45 = 1080 59 × 10 = 590 83 - 20 = 63 93 - 30 = 63 95 - 32 = 63