72 乘法 21 等于多少？

72 × 20 = 1440 72 × 22 = 1584 72 × 19 = 1368 72 × 23 = 1656 72 × 24 = 1728 72 × 18 = 1296 72 × 25 = 1800 72 × 17 = 1224 71 × 21 = 1491 73 × 21 = 1533 74 × 21 = 1554 70 × 21 = 1470 75 × 21 = 1575 69 × 21 = 1449 76 × 21 = 1596 68 × 21 = 1428 18 × 84 = 1512 21 × 72 = 1512 24 × 63 = 1512 27 × 56 = 1512 28 × 54 = 1512 36 × 42 = 1512 46 × 49 = 2254 84 × 98 = 8232 4 × 29 = 116 96 × 10 = 960 39 × 16 = 624 12 × 82 = 984 79 × 83 = 6557 93 × 34 = 3162