Question 51101
The numbers have different place-values:
For number 28, the 2 is in the tens place and the 8 is in the ones place.

.
28 =
2 X 10 = 20
8 X 1 = 8
___________
Total: 28

.
.
for the number 208, 2 is in the hundreds place, the zero is in the tens place, and the 8 is in the ones place.
.
208=
.
2 x 100 = 200
0 X 10 = 0
8 X 1 = 8
________________
total: 208