Editor Reviews:

Amazon.com Product Description:
Solar powered with a battery back-up, this Casio handheld calculator has an assortment of keys and functions for everyday use. Lightweight, sturdy, and easy to use, this handy tool offers eight digits and 16-digit approximations, an auto power off feature, large display, and profit margin percentage function. It also boasts new tax and exchange functions, as well as +/- and square root options.

Rating : - Don't know
This came free with something else we purchased. I didn't need it, and in fact haven't removed it from its packaging so I have no idea if it is good or not. For the price, it seems pretty good.