<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation
Our Terms of Use (click here to view) have changed. By continuing to use this site, you are agreeing to our new Terms of Use.

Decimal Addition

Add and subtract decimals by lining up the decimal points.

Atoms Practice
Estimated18 minsto complete
Practice Decimal Addition
This indicates how strong in your memory this concept is
Estimated18 minsto complete
Practice Now
Turn In
The World's Best Bikers

Credit: Geert Schneider
Source: http://www.flickr.com/photos/geertschneider/4788128552/
License: CC BY-NC 3.0

Every year, riders in the Tour de France race their bicycles for over 2,000 miles. They ride through mountains and across wide plains. They bike through France and neighboring countries. Finally, they cross the finish line in Paris. But the first rider across the line may not win the race.

Stages Along the Way

The whole Tour de France is broken into 21 stages over 23 days. All riders start together each morning. So, to make the competition fair, race organizers keep track of every rider’s time in each stage. They add all of the times together to find out who has the best overall time for the race. The fastest rider ever averaged 25.9 miles per hour during the race. That’s pretty impressive, considering that the course takes bikers up and down several large mountain ranges. Bicycle fans from around the world cheer for their favorite riders, follow the daily race results, and watch television coverage of the Tour.

Credit: Johan Vandamme
Source: http://www.flickr.com/photos/martinebulcaen/768023331/
License: CC BY-NC 3.0

Nine-member teams from around the world compete in the Tour de France. Organizers award prizes to the fastest individual, the fastest team, and the winners of each stage. There are also special prizes for the rider who does best on mountains, the most aggressive rider, and the fastest rider under the age of 25.

See for yourself: http://www.youtube.com/watch?v=h7wPa1Hl5ZA

Explore More

Watch the videos at the links below to learn about the technology used by the cyclists, the victor of the 2013 (and 100th) Tour de France, and a seven-time winner’s loss of his titles.




    Notes/Highlights Having trouble? Report an issue.

    Color Highlighted Text Notes
    Please to create your own Highlights / Notes
    Show More

    Image Attributions

    1. [1]^ Credit: Geert Schneider; Source: http://www.flickr.com/photos/geertschneider/4788128552/; License: CC BY-NC 3.0
    2. [2]^ Credit: Johan Vandamme; Source: http://www.flickr.com/photos/martinebulcaen/768023331/; License: CC BY-NC 3.0

    Explore More

    Sign in to explore more, including practice questions and solutions for Decimal Addition.
    Please wait...
    Please wait...
    Add Note
    Please to create your own Highlights / Notes