1. The problem is to understand the difference between using 108 and 1.08 in calculations. 2. When a number like 1.08 is used, it usually represents a value slightly greater than 1, often a multiplier or factor (e.g., 1.08 means 108%). 3. Using 108 instead of 1.08 changes the scale drastically because 108 is one hundred eight, not one point zero eight. 4. For example, if you multiply a number $x$ by 1.08, you get $x \times 1.08$ which is $108\%$ of $x$. 5. If you multiply $x$ by 108, you get $x \times 108$, which is $108$ times $x$, a much larger value. 6. Therefore, you cannot simply replace 1.08 with 108 without changing the meaning and result of the calculation. 7. Always check the context: if the number represents a percentage or a factor close to 1, use decimal form like 1.08. 8. If the number is a whole number or count, use it as is. 9. In summary, 1.08 and 108 are not interchangeable; 1.08 is a decimal multiplier, 108 is a whole number.