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Tool: Order of Operations
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Go to: http://www.math.com/school/subject2/lessons/S2U1L2GL.html (opens a new window)
Description: The user reviews the rules for the order of operations for a given expression. After viewing examples, users can interactively practice evaluating expressions following the rules for the order of operations.
Technology Type: JavaScript 
Author: Math.com
Language: English 
Cost: Does not require payment for use

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  gRebJack
Comment:The first problem it presented to me (63/81+80) had an answer of 80 and 7/9. I tried 80 7/9, I tried 80.77777777, and I tried 80+7/9. None of those was the acceptable answer, and I wasn't able to get it to show me what it wanted, either.
  carom
Comment:This program isn't flashy, but can be a good approach to students learning order or operations, especially if students work in tandem--one on the calculator and one on the computer.