Car dealers rely on a deceptively simple worksheet, the four-square, to turn a straightforward purchase into a maze of ...

Car dealers rely on a simple worksheet called the "four square" to turn a straightforward purchase into a maze of numbers ...

Allie Hays’ friends had a good laugh when they heard about the class she had signed up for at North Central College in Naperville: Mathematics of Square Dancing. Hays thought it was pretty funny ...