What is a 10 Key Calculator? 
The most interesting fact about a 10 Key calculator is that the operator is added after the number. So pressing '3  4 + *' yields an answer of +1, not 1. The minus sign was applied to the 3 and made it a negative number, the plus sign was applied to the 4 and made it a positive number. The * (asterick) is like an = (equal) key.
Reference the link or search the term in your browser. A 10key is often used by CPA's to add & subtract columns of numbers. They are labeled as 'Printing Calculators' in the stationary store. Here is a link: some information about 10 Key calculators 

How is 10 Key Calculator different from our other singlecolumn calculator called ✓ Accountant Calc? 
Both calculators are singlecolumn adding machines. '10 Key' behaves exactly the same as a 10 Key Printing Calculator, commonly used by CPA's and Accountants and found at the stationary store labeled as 'Printing Calculators'. ✓ Accountant Calc supports the free chaining of +, , x, /, %, sqrt, 1/x and is easier to use if you are not familiar with how a '10key' works. 

Where is the options page? 
10 Key Calculator's options page is to the right of the main keypad. If you touch and slide the keypad from righttoleft you will see the page. Also, in the top right corner of the options page is a button which will show a fullscreen view of the paper tape. 

What are the three display formats for? 
People doing general math want as many decimal places as possible (float), Someone doing monetary math wants a fixed number of decimal places (fix.n), and an accountant or CPA wants to enter numbers without having to enter a decimal place (fix+). Easily access the three different formats by pressing the display format key on the main keypad. 

How do I make my keys larger? 
10 Key Calculator has a very powerful feature for sizing your keys to your needs. Just touch the calculator's LCD display and move it up or down to resize the keys. 

I see a button for printing, but it doesn't seem to work. 
10 Key Calculator supports AirPrint which allows an iOS device to print directly to a printer. The printer must be a wireless printer on the same local network as your iOS device. Also, the wireless printer must be an AirPrint printer. For example HP's printer use the term 'ePrint capable'. 

I want to put the numbers of my paper tape into an Excel spreadsheet. 
This is easy to do. Start by emailing your paper tape to yourself. Double click on the attachment in the email that ends with the letters "CSV". With Micosoft (c) Excel installed on your computer, your paper tape will open in a spreadsheet. The right hand column of numbers labeled 'Numbers for Copy and Paste' are sign corrected and can be added to a live spreadsheet. 

I have a great suggestion. Should I send it? 
Absolutely. We want to hear as many thoughts, suggestions, corrections as possible. We will respond almost immediately. You can send an email by clicking here: Email Support. 

