Sex Ed Trumps Math Literacy?

Excerpt: How much change does a grocery customer get if he hands over a $20 bill to pay for $7.93 in groceries? How many of you instantly said $12.07?

Good. But what if your customer said, "Oh, and here are three pennies?"

How many of you said you'd hand him $12.10?

Excellent! This simple mental arithmetic would qualify you to work as a cashier any time from the minting of the first coins – sometime around 600 B.C. – until the advent of electronic calculators.

Read More