…and to pay for my sandwich combo (which was $8.21, BTW) I handed the cashier a $10 bill. As she quickly punched a button to open the cash drawer, I remembered I had a quarter in my pocket and handed it to her, apologizing for the inconvenience. After looking at my hand, which was extending the quarter, the cashier paused and informed me that she was incapable of figuring out the change necessary since she had already rung up the correct total.
What has become of mental math?
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