Microsoft Office Tutorials and References

In Depth Information

**Chapter 7: Using Basic Math Functions**

Chapter 7

Using Basic Math Functions

In This Chapter

▶
Summing, rounding, and truncating values

▶
Using a value’s sign in a calculation

▶
Removing the sign from a number

Excel is excellent for working with advanced math and complex

calculations. You can do so many complex things with Excel that it’s easy to

forget that Excel is great at basic math, too.

Need the sum of a batch of numbers? No problem. Need to round a number?

Read on! In this chapter, I show you not just how to sum and round numbers

but how to use these methods in ways that give you just the answers you need.

Adding It All Together with

the SUM Function

Just adding numbers together is something Excel is great at. Oh, you can use

your calculator to add numbers as well, but think about it: On a calculator

you enter a number, then press the + button, then enter another number,

then press the + button, and so on. Eventually you press the = button and

you get your answer. But if you made an entry mistake in the middle, you

have to start all over!

The SUM function in Excel adds numbers together in a more efficient way.

First, you list all your numbers on the worksheet. You can see them all and

verify that they’re correct. Then you use the SUM function to add them all

together. Here’s how: