Expr. -2 + 2 = isn't works because starts with -.
IA Page: http://duck.co/ia/view/calculator
Maintainer: @GuiltyDolphin
good find, @fzzr!
@edgesince84 you probably meant "good find, @fzzr-!" Don't worry about it, we have this happen a lot ^_^'
馃槅 - sorry for the noise @fzzr!
@fzzr- @edgesince84 This is working in the new version (on Beta): https://beta.duckduckgo.com/?q=-2+%2B+2&ia=answer
This has been addressed.