Sure, let's round 5.09 to the nearest whole number step by step.
1. Identify the number you want to round: 5.09.
2. Look at the digit in the tenths place (the first digit to the right of the decimal point). In this case, the number in the tenths place is 0.
3. Apply the rounding rule:
- If the digit in the tenths place is less than 5, round down.
- If the digit is 5 or greater, round up.
4. Since the digit in the tenths place is 0 (which is less than 5), you round down the number.
Therefore, 5.09 rounded to the nearest whole number is 5.
