20 乘法 30 等于多少？

20 × 29 = 580 20 × 31 = 620 20 × 28 = 560 20 × 32 = 640 20 × 33 = 660 20 × 27 = 540 20 × 34 = 680 20 × 26 = 520 19 × 30 = 570 21 × 30 = 630 22 × 30 = 660 18 × 30 = 540 23 × 30 = 690 17 × 30 = 510 24 × 30 = 720 16 × 30 = 480 6 × 100 = 600 8 × 75 = 600 10 × 60 = 600 12 × 50 = 600 15 × 40 = 600 24 × 25 = 600 46 × 34 = 1564 84 × 72 = 6048 27 × 93 = 2511 18 × 64 = 1152 99 × 16 = 1584 84 × 60 = 5040 74 × 36 = 2664 10 × 28 = 280