39 乘法 20 等于多少？

39 × 19 = 741 39 × 21 = 819 39 × 22 = 858 39 × 18 = 702 39 × 23 = 897 39 × 17 = 663 39 × 24 = 936 39 × 16 = 624 38 × 20 = 760 40 × 20 = 800 37 × 20 = 740 41 × 20 = 820 42 × 20 = 840 36 × 20 = 720 43 × 20 = 860 35 × 20 = 700 10 × 78 = 780 12 × 65 = 780 13 × 60 = 780 15 × 52 = 780 20 × 39 = 780 26 × 30 = 780 55 × 22 = 1210 14 × 15 = 210 76 × 89 = 6764 34 × 25 = 850 77 × 71 = 5467 40 × 90 = 3600 78 × 66 = 5148 48 × 64 = 3072