Old-Fashion Tabulator
In the days before computers, tabulators were state-of-the-art tools. They are still very useful for simple addition tasks such as adding up income and expenses.
The main difference between then and now: Then, you typed in the digits before pressing the [+] or [-] key. Now we do it just the opposite: We type in the [+] or [-] key before typing in the digits.
This
Old-Fashion Tabulator uses the old-fashion method. Use the [+], [-] and [Enter] keys of the ten-key pad. The [Enter] key may be used in place of the [+] key for entering positive numbers. For subtotals and grand total, simply press the [Enter] key.
Try it . . ! You must use the key-pad.