Calculator with Built-In Quiz Functions for Less than Zero!

Circuit City is offering a Sharp calculator with built-in quiz and drill functions so it can be used to also learn and test as kids (or anyone) is trying to learn or polish their math skills. It's also a fully functional calculator for all the regular purposes.

The best part is that right now it's available for minus 8 cents after rebate!

Yes, the calculator is $8.32 and they send you back a rebate check of $8.40! The rebate is good for purchases made until November 24th. Shipping costs $3.49 for standard, but if you're buying it together with other items totalling over $24, shipping is free. You can also use in-store pick-up to save shipping costs (but with the price of gas, the standard shipping could be cheaper).

Here's the link.

A handy little product with a rebate greater than its cost sounds like a nice calculation to me.