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 12 × 20 = 240 64 × 61 = 3904 9 × 18 = 162 56 × 67 = 3752 40 × 14 = 560 91 × 16 = 1456 73 × 8 = 584 11 × 88 = 968