9 乘法 1 等于多少？

9 × 2 = 18 9 × 3 = 27 9 × 4 = 36 9 × 5 = 45 9 × 6 = 54 9 × 7 = 63 9 × 8 = 72 9 × 9 = 81 8 × 1 = 8 10 × 1 = 10 11 × 1 = 11 7 × 1 = 7 12 × 1 = 12 6 × 1 = 6 13 × 1 = 13 5 × 1 = 5 1 × 9 = 9 3 × 3 = 9 4 × 1 = 4 3 × 2 = 6 2 × 1 = 2 3 × 1 = 3 2 × 4 = 8 22 - 13 = 9 57 - 48 = 9 8 + 1 = 9 70 - 61 = 9 77 × 59 = 4543 19 × 80 = 1520 59 × 4 = 236