User talk:32.215.241.212

February 2020
Hello, I'm Theinstantmatrix. I wanted to let you know that one or more of your recent contributions to Standard deduction have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the help desk. Thanks. theinstantmatrix (talk) 02:30, 4 February 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

Please do not add or change content, as you did at Standard deduction, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. theinstantmatrix (talk) 02:33, 4 February 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.