Weekly Challenges
Solve the challenge, share your solution and summit the ranks of our Community!Also available in | Français | Português | Español | 日本語
IDEAS WANTED
Want to get involved? We're always looking for ideas and content for Weekly Challenges.
SUBMIT YOUR IDEA
Challenge complete! I had to subtract the improvements instead of adding. Good thing I don't do my own taxes! I probably made this way more complicated than it needed to be!
