31 乘法 21 等于多少？

31 × 20 = 620 31 × 22 = 682 31 × 19 = 589 31 × 23 = 713 31 × 24 = 744 31 × 18 = 558 31 × 25 = 775 31 × 17 = 527 30 × 21 = 630 32 × 21 = 672 29 × 21 = 609 33 × 21 = 693 28 × 21 = 588 34 × 21 = 714 35 × 21 = 735 27 × 21 = 567 7 × 93 = 651 21 × 31 = 651 93 × 7 = 651 15 × 35 = 525 15 × 6 = 90 84 × 18 = 1512 27 × 36 = 972 69 × 15 = 1035 89 × 48 = 4272 48 × 80 = 3840 100 × 8 = 800 13 × 95 = 1235 18 × 82 = 1476 15 × 24 = 360