Buy a ten-key printing calculator
Read on for tips on how to choose your perfect 10-key.
Choosing your calculator
Before you buy a calculator, you're going to want to find one that has the features you like best. From the simple to the complex, ten-key calculators are most useful when they have only the features you need and want, and not the features you'll never use.
Most useful basic features
- Two color printing is a great option, because negative numbers print in red. You always know at a glance if a number was added or subtracted.
- Display size is important if you have issues with near- or far-sightedness. Also, the distinctness of the digits is important, so that a quick glance is all you need to recognize the displayed figure.
Larger, comfortably spaced keys are better for accuracy and speed. Avoid springy keys at all costs. If you buy a calculator and the keys take too much pressure to tap adequately enough to register, send it back to the store. I once had just such a calculator and my accuracy was about as good as my ability to dial a phone with my eyes closed.
Key groupings are important too. It's always nice when the calculator separates the multiplication and division functions from the addition and subtraction.