How does a digit in the ten thousands place compare to a digit in the thousands place

A digit in the tenthousands place is ten times smaller than the thousandths place.

.09 is bigger than .009

According to International system of Numeration.

We can write as, ten million , million, hundred thousands, ten thousands, thousands, hundred, tens, ones

or

10 million, million, 100 thousands, 10 thousands, thousands, 100, 10, 1s

ten million > million> hundred thousands>ten thousands>thousands> hundred> tens> ones

By comparing, Ten thousands > thousands

So the digits in ten thousands > digit in thousand

Hence, the digit in ten thousand place is greater than thousand place

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80