What is 52.81 rounded to the nearest whole number?
The Correct Answer and Explanation is:
To round 52.81 to the nearest whole number, we first need to examine the digit in the tenths place (the first digit to the right of the decimal point), which is 8.
The rules for rounding numbers are as follows:
- If the digit in the tenths place is 5 or greater, round the number up.
- If the digit in the tenths place is less than 5, round the number down.
In this case, the digit in the tenths place is 8, which is greater than 5. According to the rounding rules, since the tenths digit is 5 or greater, we round the number up.
Therefore, rounding 52.81 to the nearest whole number results in 53.
Explanation:
Rounding is the process of approximating a number to a specific level of precision, typically to the nearest whole number, tenth, hundredth, etc. This helps simplify numbers for easier communication, especially when the exact value is not necessary for the task at hand.
In our case, we’re rounding to the nearest whole number, so we focus on the digit in the tenths place. Here’s a breakdown of the steps:
- Identify the tenths digit: The number given is 52.81. The digit in the tenths place is 8.
- Apply the rounding rule: Since 8 is greater than 5, we round the whole number up from 52 to 53.
- Result: After rounding, 52.81 becomes 53.
Rounding numbers is essential in various fields, from mathematics to real-life situations, like estimating costs or reporting measurements. In this case, rounding 52.81 to 53 provides a simpler approximation for practical use, without significantly changing the value.