1 乘法 2 等于多少？

1 × 1 = 1 1 × 3 = 3 1 × 4 = 4 1 × 5 = 5 1 × 6 = 6 1 × 7 = 7 1 × 8 = 8 1 × 9 = 9 2 × 2 = 4 3 × 2 = 6 4 × 2 = 8 5 × 2 = 10 6 × 2 = 12 7 × 2 = 14 8 × 2 = 16 9 × 2 = 18 2 × 1 = 2 9 × 1 = 9 3 × 3 = 9 7 × 1 = 7 4 × 1 = 4 8 × 1 = 8 56 - 54 = 2 4 - 2 = 2 88 - 86 = 2 16 - 14 = 2 9 × 67 = 603 50 × 80 = 4000 75 × 64 = 4800 40 × 90 = 3600