User talk:80.42.225.1

December 2016
Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions to Negative number have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Materialscientist (talk) 14:18, 31 December 2016 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.