21 乘法 68 等于多少？

21 × 67 = 1407 21 × 69 = 1449 21 × 66 = 1386 21 × 70 = 1470 21 × 65 = 1365 21 × 71 = 1491 21 × 64 = 1344 21 × 72 = 1512 20 × 68 = 1360 22 × 68 = 1496 19 × 68 = 1292 23 × 68 = 1564 24 × 68 = 1632 18 × 68 = 1224 25 × 68 = 1700 17 × 68 = 1156 17 × 84 = 1428 28 × 51 = 1428 34 × 42 = 1428 42 × 34 = 1428 51 × 28 = 1428 68 × 21 = 1428 54 × 18 = 972 22 × 67 = 1474 71 × 43 = 3053 42 × 43 = 1806 70 × 8 = 560 77 × 71 = 5467 35 × 70 = 2450 13 × 100 = 1300