Cheaper pizza

The Daughter is doing order of operations at school.

General problem 2I went to the local pizzeria on a recent Saturday night. The cost was $10.50; I gave the cashier a $20 bill and a $1 bill. But he gave me back the dollar bill, and then gave me change for the $20, which was $9.50.

As it turned out, they were out of five-dollar bills Continue reading “Cheaper pizza”