If 1.7 is rounded, the two decimal places can be: 1.65, 1.66, 1.67, 1.68, 1.69.

If 1.7 is rounded, the two decimal places can be: 1.70, 1.7 1, 1.72, 1.73, 1.74.

To sum up, * * * has 10 decimal places.