Identify relevant information, ignore distractors, and choose an appropriate operation or representation for a contextual problem.
Choose the right operation
Problem
Mia buys \(4~\text{notebooks}\) at \(\$3~\text{each}\) and applies a \(\$5\) coupon to the total. State the operation sequence for calculating what she pays.
Big Picture
What this problem is really about
Follow the roles of the quantities rather than reacting to keywords. The notebook price is repeated for every notebook, so first form the full merchandise subtotal; the coupon applies once to that completed total, not once per item. Reading the purchase in that order determines the required operation sequence.
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