4.5 rounded to the nearest tenth
Understand the Problem
The question is asking to round the number 4.5 to the nearest tenth. When rounding, we look at the digit in the hundredths place to determine how to round the tenths place.
Answer
4.5
Answer for screen readers
The rounded number is 4.5.
Steps to Solve
- Identify the tenths and hundredths places
In the number 4.5, the tenths place is the first digit to the right of the decimal point, which is 5. The second digit to the right of the decimal point is where the hundredths place is, but in this case, there is no digit there, and we can think of it as 0.
- Determine the rounding rule
To round to the nearest tenth, we look at the digit in the hundredths place. If it is 5 or greater, we round up the tenths place. If it is less than 5, we keep the tenths digit the same.
- Apply the rounding rule
Here, the digit in the hundredths place is effectively 0, which is less than 5. Therefore, we do not round up.
- Write the final rounded number
Since we keep the tenths digit the same, the rounded number remains 4.5.
The rounded number is 4.5.
More Information
When rounding numbers, it's helpful to remember that a value of 5 will cause the previous digit to round up, while anything below 5 keeps the digit the same.
Tips
- A common mistake is to round up any time the tenths place is 5, which is incorrect. Always check the hundredths place to determine if you need to round up or not.
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