45 乘法 20 等于多少？

45 × 19 = 855 45 × 21 = 945 45 × 22 = 990 45 × 18 = 810 45 × 23 = 1035 45 × 17 = 765 45 × 24 = 1080 45 × 16 = 720 44 × 20 = 880 46 × 20 = 920 47 × 20 = 940 43 × 20 = 860 48 × 20 = 960 42 × 20 = 840 49 × 20 = 980 41 × 20 = 820 9 × 100 = 900 10 × 90 = 900 12 × 75 = 900 15 × 60 = 900 18 × 50 = 900 20 × 45 = 900 16 × 71 = 1136 16 × 59 = 944 95 × 99 = 9405 92 × 20 = 1840 40 × 94 = 3760 93 × 44 = 4092 22 × 47 = 1034 66 × 3 = 198