1 乘法 18 等于多少？

1 × 17 = 17 1 × 19 = 19 1 × 20 = 20 1 × 16 = 16 1 × 21 = 21 1 × 15 = 15 1 × 22 = 22 1 × 14 = 14 2 × 18 = 36 3 × 18 = 54 4 × 18 = 72 5 × 18 = 90 6 × 18 = 108 7 × 18 = 126 8 × 18 = 144 9 × 18 = 162 2 × 9 = 18 3 × 6 = 18 6 × 3 = 18 9 × 2 = 18 18 × 1 = 18 23 × 64 = 1472 62 × 59 = 3658 35 × 58 = 2030 9 × 68 = 612 11 × 51 = 561 67 × 92 = 6164 23 - 5 = 18 2 + 16 = 18 20 - 2 = 18