You must disable your AdBlock software in your browser to use this site.
Disable ad blocking for practiceit.cs.washington.edu, then refresh this page to continue.
It is easy to disable AdBlock for just one site while leaving it enabled for other sites.
Just click the "stop sign" icon in the top-right of your browser, then un-check the "Enabled for this site" checkbox.
Thank you for your understanding and helping us to keep Practice-It free of cost for all students to use.
If you are still seeing this message after disabling your ad blocker, try clearing your browser history and refreshing the page.
Also make sure you don't have any other ad-blocking software running outside of your browser, such as a HOSTS file or proxy.
If you are certain that you are not running AdBlock or any other ad-blocking software, but you are still seeing this message,
please Contact Us.
Hint: Binary numbers use 0 and 1 as their only digits.
Hint: Each digit in a binary number represents a power of 2. From the right, the digits are worth 1, then 2, then 4, 8, 16, and so on.
Hint: The number 12 in binary would have the representation 1100, because that represents (1*8) + (1*4) + (0*2) + (0*1).
Hint: To find a number's binary representation, repeatedly subtract out the largest power of 2 that you can until you have consumed the entire number. Each power of 2 that you pull out will correspond to a 1 in the binary number.
Hint: Every binary number other than 0 will start with 1.
Convert each of the following decimal numbers into its equivalent binary number:
Contacting server and running tests...
If you do not understand how to solve a problem or why your solution code doesn't work, please contact your TA or instructor.
If something seems wrong with the Practice-It system itself (errors, slow performance, incorrect problem descriptions/tests, etc.), please