Question

Kendra and her horse completed the barrel racing in 15.839 seconds. What is this number rounded to the nearest tenth?

Answer 1

15.8

Explanation:

To round to nearest tenth we only go so far as the first decimal place. If the second decimal digit is less than 5 we leave that number as it is otherwise we increase it by 1

In 15.839, the second decimal digit is 3 so we get 15.8

(If it had been 15.864 then it would be 15.9)