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|NASA Lewis Learning Technologies Project|
|Erv ran the 110 meter high hurdles in 13.27 seconds. His teammate, Willie, ran the same race in 12.91 seconds. Rounded to the nearest tenth of a second, how much faster was Willie's time? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.|
|Levels:||Elementary, Middle School (6-8), High School (9-12)|
|Resource Types:||Problems/Puzzles, Web Interactive/Java|
|Math Topics:||Calendars/Dates/Time, Number Sense/About Numbers|
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