103 = 10 * 10 * 10 = 1000. So multiplying 4.025 * 1000 means you need to move the decimal place over 3 to the right, which would be 4025. The 5 is in the "ones" place.
The place value is 10 thousand
Its face value is 1 but its place value is 10
Each place has a value 10 times the value of the place to its right.
10 thousand
10
The place value is 10 thousand
Its face value is 1 but its place value is 10
It is in 10's place and has a value of 50.
Each place has a value 10 times the value of the place to its right.
Why is 10 important in our place value system
Its positional place value is 1/10 = one tenth
54.92
Its positional place value is 7/10 = seven tenths
10 thousand
It's in the 10 millions place and therefore its value is 70 million.
The first one (from the left) is 3 times 10 = 30. The place value of each digit is one tenth of the place value of the number to its left.
A number such as the one you wrote doesn't have a "place-value"; the concept of "place-value" applies to each of the digits. The right-most digit has a place-value of 1, the second digit (from the right) has a place-value of 10, the third one has a place-value of 100 (10 squared), the next one has a place-value of 1000 (10 cubed), etc.