If you need some accounting at-a-glance, Pen+Gear offers a 12-Digit Calculator with Erasable Notepad. This handheld calculator has every function you need to perform simple math quickly. From simple calculations to more complex ones, like square roots, our 12-Digit Calculator has your back. This compact calculator has every function you need to perform simple math quickly. Need to write calculations? No Problem, use the Erasable Notepad and Stylus included! Our handy Calculator with Notepad design makes it easy to keep your desk clear, organized, and uncluttered.