20 乘法 84 等于多少？

20 × 83 = 1660 20 × 85 = 1700 20 × 82 = 1640 20 × 86 = 1720 20 × 87 = 1740 20 × 81 = 1620 20 × 88 = 1760 20 × 80 = 1600 19 × 84 = 1596 21 × 84 = 1764 22 × 84 = 1848 18 × 84 = 1512 23 × 84 = 1932 17 × 84 = 1428 24 × 84 = 2016 16 × 84 = 1344 21 × 80 = 1680 24 × 70 = 1680 28 × 60 = 1680 30 × 56 = 1680 35 × 48 = 1680 40 × 42 = 1680 80 × 74 = 5920 69 × 18 = 1242 80 × 78 = 6240 49 × 25 = 1225 45 × 10 = 450 29 × 48 = 1392 46 × 96 = 4416 90 × 62 = 5580