The following question has two parts. First, answer part A. Then, answer part B.
Part A
A high school athlete ran the 100 meter sprint in 13.245 seconds. Round the time to the nearest tenth. Enter the answer in the box.
(1 point)
seconds
Question 2
Part B
Explain how you arrived at the answer. Include any rules that you followed.
(4 points)
Part A: The athlete ran the 100 meter sprint in 13.2 seconds.
Part B: To arrive at this answer, I followed the rule for rounding decimals. Since the digit immediately after the tenths place (the hundredths place) is 4 or less, I rounded down the tenths place to 1. Therefore, the time is rounded to 13.2 seconds.
Part A:
The high school athlete ran the 100 meter sprint in 13.245 seconds. To round the time to the nearest tenth, we look at the digit in the hundredth's place, which is 4.
Based on the rounding rule, if the digit in the hundredth's place is less than 5, we round down to the nearest tenth. If the digit in the hundredth's place is 5 or greater, we round up to the nearest tenth.
Since 4 is less than 5, we round down. Therefore, the rounded time to the nearest tenth is 13.2 seconds.
Part B:
To arrive at the answer, I followed the rounding rule stated above. I looked at the digit in the hundredth's place, which was 4, and determined that it is less than 5. As a result, I rounded down to the nearest tenth to obtain the answer of 13.2 seconds.