38 乘法 21 等于多少？

38 × 20 = 760 38 × 22 = 836 38 × 19 = 722 38 × 23 = 874 38 × 24 = 912 38 × 18 = 684 38 × 25 = 950 38 × 17 = 646 37 × 21 = 777 39 × 21 = 819 40 × 21 = 840 36 × 21 = 756 41 × 21 = 861 35 × 21 = 735 42 × 21 = 882 34 × 21 = 714 14 × 57 = 798 19 × 42 = 798 21 × 38 = 798 42 × 19 = 798 57 × 14 = 798 2 × 70 = 140 6 × 47 = 282 55 × 55 = 3025 77 × 40 = 3080 50 × 61 = 3050 21 × 99 = 2079 60 × 1 = 60 13 × 68 = 884 23 × 64 = 1472