The plus symbol: +
a comma
On a spreadsheet you use the * symbol rather than x as used normally in mathematics.
You would use a - to subtract a number on a spreadsheet
In a spreadsheet, you use the SUM function to automatically add a set of numbers together. The symbol for this function is "SUM," and it is typically written as =SUM(range), where "range" represents the cells you want to add. For example, =SUM(A1:A10) adds all the numbers in cells A1 through A10.
The equal sign(; ( = )
Generally it would still be called a spreadsheet, but it could be called a What-if spreadsheet.
The most common use is in a formula that includes subtraction.
You use a worksheet when you want to have only a single spreadsheet. You will use a workbook when you have multiple worksheets.
An integrated program
In a spreadsheet, you would use the plus sign (+) to add two numbers together. For example, if you wanted to add the values in cells A1 and B1, you would enter the formula =A1 + B1 in another cell. This will calculate the sum of the two numbers and display the result.
One is a spreadsheet program made by Lotus the other is a spreadsheet program made by Microsoft. The main difference is the way in which formulas are entered - in Excel they are preceded by the = symbol and in 1-2-3 they are preceded by the + symbol.