40 乘法 42 等于多少？

40 × 41 = 1640 40 × 43 = 1720 40 × 40 = 1600 40 × 44 = 1760 40 × 39 = 1560 40 × 45 = 1800 40 × 38 = 1520 40 × 46 = 1840 39 × 42 = 1638 41 × 42 = 1722 38 × 42 = 1596 42 × 42 = 1764 37 × 42 = 1554 43 × 42 = 1806 44 × 42 = 1848 36 × 42 = 1512 20 × 84 = 1680 21 × 80 = 1680 24 × 70 = 1680 28 × 60 = 1680 30 × 56 = 1680 35 × 48 = 1680 76 × 26 = 1976 78 × 86 = 6708 65 × 76 = 4940 94 × 47 = 4418 57 × 25 = 1425 37 × 37 = 1369 66 × 14 = 924 99 × 90 = 8910