Question

In 2010 28,357 of the finishers were men and 14,082 of the finishers were women. About how many more men finished the race than women. To determine your answer did you round to the nearest ten thousand or thousand? Explain

Answer 1

the answer suggests rounding using the word "about"

round men to 28,000 and women to 14,000.
subtract women from men to get 14,000.
approx 14,000 more men finished than women.

we rounded to the nearest 1000 for each addend.