20×8乘以6再除以7

5×3除以6再乘以7再除以8再×9等于几...5×3除以6再乘以7再除以8再×9等于几

9×8乘以6再除以9等于几...9×8乘以6再除以9等于几

30×10乘以6除以2×10...30×10乘以6除以2×10

60×35乘以6除以630×630等于几...60×35乘以6除以630×630等于几

6×6再乘以6再除以666等于几...6×6再乘以6再除以666等于几

8×7乘6除以3×2乘1...8×7乘6除以3×2乘1

2×乘以6除以3再再×2等于几...2×乘以6除以3再再×2等于几

6×6乘6再除以2等于几...6×6乘6再除以2等于几

8×7乘6除以3×2...8×7乘6除以3×2

600×270乘6除以3×3...600×270乘6除以3×3