31 乘法 30 等于多少？

31 × 29 = 899 31 × 31 = 961 31 × 28 = 868 31 × 32 = 992 31 × 33 = 1023 31 × 27 = 837 31 × 34 = 1054 31 × 26 = 806 30 × 30 = 900 32 × 30 = 960 29 × 30 = 870 33 × 30 = 990 28 × 30 = 840 34 × 30 = 1020 35 × 30 = 1050 27 × 30 = 810 10 × 93 = 930 15 × 62 = 930 30 × 31 = 930 62 × 15 = 930 93 × 10 = 930 63 × 76 = 4788 52 × 10 = 520 67 × 36 = 2412 87 × 88 = 7656 59 × 66 = 3894 71 × 30 = 2130 80 × 84 = 6720 81 × 65 = 5265 75 × 80 = 6000