31 乘法 20 等于多少？

31 × 19 = 589 31 × 21 = 651 31 × 22 = 682 31 × 18 = 558 31 × 23 = 713 31 × 17 = 527 31 × 24 = 744 31 × 16 = 496 30 × 20 = 600 32 × 20 = 640 29 × 20 = 580 33 × 20 = 660 28 × 20 = 560 34 × 20 = 680 35 × 20 = 700 27 × 20 = 540 10 × 62 = 620 20 × 31 = 620 62 × 10 = 620 79 × 71 = 5609 56 × 92 = 5152 80 × 62 = 4960 60 × 65 = 3900 3 × 94 = 282 40 × 36 = 1440 66 × 49 = 3234 62 × 16 = 992 40 × 3 = 120 45 × 10 = 450 31 × 99 = 3069