Introduction to Formulas
What is a Formula?
A formula is an instruction that tells the spreadsheet to calculate something. Formulas always start with an equals sign (=).
Basic Formula Types
Arithmetic
=A1+B1(addition)=A1-B1(subtraction)=A1*B1(multiplication)=A1/B1(division)
Functions
Functions are pre-built formulas:=SUM(A1:A10)- Add up values=AVERAGE(A1:A10)- Calculate mean=COUNT(A1:A10)- Count numbers=MIN(A1:A10)- Find smallest=MAX(A1:A10)- Find largest
How Formulas Update
The magic of spreadsheets: when you change data, formulas automatically recalculate!
Change a sales number → Totals and averages update instantly.
In This Module
You'll master:
- SUM and AVERAGE
- MIN and MAX
- COUNT and COUNTA
Let's start calculating!