4 乘法 1 等于多少？

4 × 2 = 8 4 × 3 = 12 4 × 4 = 16 4 × 5 = 20 4 × 6 = 24 4 × 7 = 28 4 × 8 = 32 4 × 9 = 36 3 × 1 = 3 5 × 1 = 5 2 × 1 = 2 6 × 1 = 6 1 × 1 = 1 7 × 1 = 7 8 × 1 = 8 9 × 1 = 9 1 × 4 = 4 2 × 2 = 4 2 × 4 = 8 1 × 7 = 7 1 × 8 = 8 9 - 5 = 4 57 - 53 = 4 95 - 91 = 4 83 - 79 = 4 57 × 36 = 2052 65 × 48 = 3120 68 × 9 = 612 45 × 50 = 2250 22 × 16 = 352