Final answer:
To round 25.0347 to three decimal places, look at the fourth decimal place. Since it's 7, you round up the third decimal place, resulting in 25.035.
Step-by-step explanation:
The question asks to round the number 25.0347 to three decimal places (3 d.p.). To round a number to a certain number of decimal places, you look at the digit to the right of the decimal place to which you are rounding. If this digit is 5 or greater, you round up the last digit to be kept by one. If it is less than 5, you leave the last digit to be kept as is.
Here, the fourth decimal place is '7', which is more than 5. Therefore, we round up the third decimal place. The number 25.0347 rounded to three decimal places is 25.035.