To use as adding machine just enter the number in the calculator field and press enter, or go and a running total will be kept in the total field Many calculations and totals can de done on the spreadsheet by pressing the New Calculation button witch zeros the total field that allows for the start of a new calculation. The spreadsheet has 20 rows. In each row in the calculator column there is an in line calculator where you can, if need be, do calculations, 45+6, 2*3, 67/8, 44-44,ect.. after these numbers are entered and the enter key or go key is pressed the calculation will be evaluated and printed in the value field. Furthermore the value field will be sent to the total field and a running total of all the rows will be kept. The numbers are saved when entered so you can come back later and they will still be there.
This is a simple program created for non computer professionals just type in the number or calculation in the calculator column and press enter.