Answer :
we have to arrange the given decimal numbers in descending order ,
in decimal numbers, the tenth place is to the right of the decimal point
hundredths place is to the right of the tenths place and thousandth place is to the right of the hundredths place
the magnitudes of the place values are as follows
tenths place > hundredths place > thousandth place
so the given numbers
56.01 , 56.10 and 56.011
the tens place and units place are the same
so lets compare the tenths place
56.10 has a digit in the tenths place therefore its the greatest
next compare the hundredth place
56.01 and 56.011 both have 1 in the hundredths place
so lets compare the thousandth place
56.011 has digit 1 in the thousandth place so its the next greatest number
and 56.01 is the least number
numbers from greatest to least is
56.10 , 56.011 , 56.01