I always wonder the reason of -*- =+. I could never visualize it. got any idea?
S Thread Starter shivabhakta Joined Feb 23, 2012 1 Feb 23, 2012 #1 I always wonder the reason of -*- =+. I could never visualize it. got any idea?
justtrying Joined Mar 9, 2011 439 Feb 23, 2012 #2 it's all in the number line, I like the baby step analogy: http://www.mathsisfun.com/multiplying-negatives.html
it's all in the number line, I like the baby step analogy: http://www.mathsisfun.com/multiplying-negatives.html
B bretm Joined Feb 6, 2012 152 Feb 24, 2012 #3 Yeah, I like that. Negative times negative is like facing the reverse and then walking backwards--you end up going the same way as facing forwards and walking forwards.
Yeah, I like that. Negative times negative is like facing the reverse and then walking backwards--you end up going the same way as facing forwards and walking forwards.