Enjoy the flight....
.... And, learn something new...
Codes and Order of Operations
A code is as follows:
Enter a number.... then, multiply by 10, subtract 20, divide by 5, add 1...
a) If the starting number is 5, what is the last number?
b) If the output is 13, what is the input?
c) Write an algebraic expression to describe the code.
d) If the output is (K), write an algebraic expression to arrive at the original input.
One more question:
VIDEO: Order of Operations (PEMDAS) Lesson from mathplayground.com
Math Review: Quick tips for solving Order of Operations from Superkids.com
exponent flashcards from thatquiz.org
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Acronym Update: GEMDAS
<--- Exercise and Puzzle
"Happy Halloween" by Chris Burke (10-31-07) PEMDAS -- (Click the lower right corner to enlarge)