MATH PUZZLE: Can you replace...MATH PUZZLE: Can you replace the question mark with a number?
A second grader came home from school and said to her mother, "Mom, guess what? We learned how to make babies today."
The mother, more than a little surprised, asked fearfully, "That's interesting. How do you make babies?"
"It's simple," replied the girl. "You just change 'y' to 'i' and add 'es'."