Excel is great for working with numbers and math. Sometimes you do that by entering formulas, and in this course you'll learn how to add, subtract divide, and multiply by typing formulas into Excel worksheets.

You'll also learn how to use simple formulas that automatically update their results when values change. If you need to revise a value after a total is calculated, no problem. Just make the change, and Excel updates the total for you.

 

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Imagine that Excel is open and you're looking at the Total Acres column. Cell B6 in the worksheet is empty; the amount of total acreage hasn't been entered yet.

In this lesson you'll learn how to use Excel to do basic math by typing simple formulas into cells. You'll also learn how to total all the values in a column with a formula that updates its result if values change later on.