What is 22.5 rounded to the nearest tenth?
The Correct Answer and Explanation is:
Answer:
22.5 rounded to the nearest tenth is 22.5.
Explanation:
Rounding a number to the nearest tenth means looking at the hundredths place, which is the digit two places to the right of the decimal point. The tenths place is the first digit to the right of the decimal point.
Let us take a closer look at the number 22.5.
- The digit in the tenths place is 5.
- There is no digit in the hundredths place, which is the same as having a zero there. So we can think of the number as 22.50.
Now we apply the rounding rule. If the digit in the hundredths place is 5 or more, we round the tenths digit up by one. If the digit in the hundredths place is less than 5, we keep the tenths digit the same.
In this case, the hundredths digit is 0, which is less than 5. Therefore, we do not round the tenths digit up. We keep it the same.
That means 22.50 stays 22.5 when rounded to the nearest tenth.
This kind of rounding is often used in measurements and calculations where only one decimal place is needed. For example, in measuring lengths, weights, or temperatures, rounding to the nearest tenth helps give a clear and manageable number without too much detail.
It is also important in real-life situations like budgeting or estimating, where approximate values are more practical than exact ones. Learning to round numbers correctly helps with mental math and problem solving in everyday life.
So, the final answer is that 22.5 rounded to the nearest tenth is 22.5, because the digit in the hundredths place is 0, which does not change the tenths digit.
