The number 8 in that question is the number with the least amount of value (0.008).
The 6
0 has the least face value, 2 has the least place value.
The lowest value digit is 2
1
It is the last digit which has a value of 0.006 or 3/500 as a fraction in its lowest terms
.8
8
It is 9
9
456,802 which digit has the greatest value
The positional place values of digits in negative numbers are in ascending order from least to greatest as for example in the number -987 the least value digit is 9 and the greatest value digit is 7 because -900 < -80 < -7 The positional place values of digits in positive numbers are in descending order from greatest to least as for example in the number 987 the least value digit is 7 and the greatest value digit is 9 because 900 > 80 > 7