20 乘法 15 等于多少？

20 × 14 = 280 20 × 16 = 320 20 × 13 = 260 20 × 17 = 340 20 × 12 = 240 20 × 18 = 360 20 × 11 = 220 20 × 19 = 380 19 × 15 = 285 21 × 15 = 315 22 × 15 = 330 18 × 15 = 270 23 × 15 = 345 17 × 15 = 255 24 × 15 = 360 16 × 15 = 240 3 × 100 = 300 4 × 75 = 300 5 × 60 = 300 6 × 50 = 300 10 × 30 = 300 12 × 25 = 300 14 × 29 = 406 19 × 56 = 1064 32 × 88 = 2816 31 × 56 = 1736 29 × 38 = 1102 46 × 55 = 2530 33 × 78 = 2574 68 × 20 = 1360