1. The problem asks to round the number 4.13 to 1 decimal place. 2. Rounding to 1 decimal place means keeping only one digit after the decimal point and deciding whether to round up or down based on the next digit. 3. The number 4.13 has digits 1 and 3 after the decimal point. The first decimal place digit is 1, and the second decimal place digit is 3. 4. The rule for rounding is: if the digit after the place you want to round to is 5 or greater, round up the last kept digit by 1; otherwise, keep it the same. 5. Here, the second decimal place digit is 3, which is less than 5, so we do not round up. 6. Therefore, rounding 4.13 to 1 decimal place gives 4.1. Final answer: **4.1**