3 乘法 5 等于多少？

3 × 4 = 12 3 × 6 = 18 3 × 3 = 9 3 × 7 = 21 3 × 2 = 6 3 × 8 = 24 3 × 1 = 3 3 × 9 = 27 2 × 5 = 10 4 × 5 = 20 1 × 5 = 5 5 × 5 = 25 6 × 5 = 30 7 × 5 = 35 8 × 5 = 40 9 × 5 = 45 1 × 15 = 15 5 × 3 = 15 15 × 1 = 15 66 × 17 = 1122 33 × 83 = 2739 74 × 19 = 1406 43 × 57 = 2451 71 × 75 = 5325 73 × 29 = 2117 23 - 8 = 15 14 + 1 = 15 18 - 3 = 15 87 - 72 = 15 20 × 11 = 220