2 1 over 4 has no meaning. If it is a number, it cannot be expressed as a quantity of length. If it is a length we need to know what unit it is, and secondly what 2 1 over 4 is in proper mathematical format.
1.00
1 foot, rounded to the nearest hundredth is 1 foot!
It is 7.22 rounded to the nearest hundredth
10.13 is already shown to the hundredth place. Example: .1 (1 is in the tenth place) .01 (1 is in the hundredth place) .001 (1 is in the thousandth place)
81.00
49.00
3.45
23.06
265.70
304.62
1.00
It is 8.92 when rounded to the nearest hundredth because the digit 1 is less than 5