30 乘法 20 等于多少？

30 × 19 = 570 30 × 21 = 630 30 × 22 = 660 30 × 18 = 540 30 × 23 = 690 30 × 17 = 510 30 × 24 = 720 30 × 16 = 480 29 × 20 = 580 31 × 20 = 620 28 × 20 = 560 32 × 20 = 640 33 × 20 = 660 27 × 20 = 540 34 × 20 = 680 26 × 20 = 520 6 × 100 = 600 8 × 75 = 600 10 × 60 = 600 12 × 50 = 600 15 × 40 = 600 20 × 30 = 600 54 × 68 = 3672 70 × 40 = 2800 54 × 50 = 2700 55 × 90 = 4950 33 × 94 = 3102 62 × 28 = 1736 72 × 13 = 936 100 × 16 = 1600