Why does order matter when simplifying expressions? Does "PEMDAS" mean you need to multiply before dividing (since M comes before D) and that you need to add before subracting (since A comes before S)? Does "parentheses" really mean parentheses (and only parentheses)? Is there a time when I see parentheses when I do not deal with them first? How do you spell "parentheses?"
Saturday, December 13, 2008
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment