80 乘法 20 等于多少？

80 × 19 = 1520 80 × 21 = 1680 80 × 22 = 1760 80 × 18 = 1440 80 × 23 = 1840 80 × 17 = 1360 80 × 24 = 1920 80 × 16 = 1280 79 × 20 = 1580 81 × 20 = 1620 78 × 20 = 1560 82 × 20 = 1640 83 × 20 = 1660 77 × 20 = 1540 84 × 20 = 1680 76 × 20 = 1520 16 × 100 = 1600 20 × 80 = 1600 25 × 64 = 1600 32 × 50 = 1600 40 × 40 = 1600 50 × 32 = 1600 100 × 52 = 5200 28 × 81 = 2268 68 × 6 = 408 51 × 46 = 2346 20 × 87 = 1740 38 × 63 = 2394 55 × 54 = 2970 91 × 62 = 5642