87 乘法 89 等于多少？

87 × 88 = 7656 87 × 90 = 7830 87 × 87 = 7569 87 × 91 = 7917 87 × 92 = 8004 87 × 86 = 7482 87 × 93 = 8091 87 × 85 = 7395 86 × 89 = 7654 88 × 89 = 7832 85 × 89 = 7565 89 × 89 = 7921 84 × 89 = 7476 90 × 89 = 8010 83 × 89 = 7387 91 × 89 = 8099 89 × 87 = 7743 21 × 19 = 399 1 × 81 = 81 36 × 20 = 720 23 × 9 = 207 78 × 9 = 702 45 × 46 = 2070 66 × 71 = 4686 16 × 82 = 1312 86 × 36 = 3096 3 × 81 = 243 1 × 63 = 63 98 × 6 = 588