I agree with rap - but I wasn't gonna come out and tell the kid - I was gonna tell him to read markr's post really carefully and then think about the words 'more' and 'less' and how 'plus' and 'minus' might relate.
talk about doing his homework for him....
Well considering the original question was asked in March, I think his homework would be long overdue.
(that's how observant I am...)
That's okay aidan
I don't believe in doing someone's homework either so we share that thought.