20 乘法 90 等于多少？

20 × 89 = 1780 20 × 91 = 1820 20 × 92 = 1840 20 × 88 = 1760 20 × 93 = 1860 20 × 87 = 1740 20 × 94 = 1880 20 × 86 = 1720 19 × 90 = 1710 21 × 90 = 1890 22 × 90 = 1980 18 × 90 = 1620 23 × 90 = 2070 17 × 90 = 1530 24 × 90 = 2160 16 × 90 = 1440 18 × 100 = 1800 24 × 75 = 1800 25 × 72 = 1800 30 × 60 = 1800 36 × 50 = 1800 40 × 45 = 1800 44 × 27 = 1188 50 × 35 = 1750 27 × 77 = 2079 79 × 78 = 6162 35 × 26 = 910 65 × 55 = 3575 1 × 10 = 10 15 × 58 = 870