LESSONS 1. Intro 2. Cell Referencing 3. Data Types 4. Operators 5. Functions 6. Intro To Logic 7. Simple Math 8. Math & Logic 9. Changing Text 10. Replacing Text 11. Splitting Text 12. Joining Text 13. Sorting Data 14. Rearranging Data 15. Looking Up Data

What kind of data can you put in the cells of a spreadsheet?

## Numbers

The majority of spreadsheets are based on numbers because spreadsheets make calculations easy.

Big numbers, small numbers, negative numbers, decimals - spreadsheets can handle them all.

Percentages are really decimals (e.g. 0.5) that are then formatted as a percentage (50%). However, you can enter '6%' in a cell and it will be recognised as a number.

Currencies are written as normal numbers and then formatted as a currency. Writing '\$4.50' won't work as the spreadsheet will assume this is text rather than a number. Instead, enter 4.5 and format it as a currency.

Dates and times are just numbers. 1 = 1 day. Fractions of 1 are hours in a day (0.5 = 12 hours).

By default (unless you change it) numbers are right-aligned in a cell. So if you type something in and it right-aligns, you've got yourself a number.

## Text

Text is just that… "text".

Letters, symbols, and numbers that aren't recognised as numbers by the spreadsheet are categorized as text.

Spreadsheets can still manipulate text in interesting and useful ways.

You just can't do calculations which means less of a spreadsheet's functionality applies to text.

By default (unless you change it) text is left-aligned in a cell. So if you type something in and it left-aligns, you've got yourself some text.

## Boolean

Boolean data is just TRUE or FALSE.

Named after a guy called George Boole, this data is the result of a logic statement.

For example, does 1=2?

The answer can only be TRUE or FALSE and for this question, it's FALSE.

Boolean data and the logic statements that create them are very useful in spreadsheets.

We'll get into them more later but for now just remember TRUE or FALSE.

You can write TRUE, FALSE, true or false in your formulas, but when displayed in a cell spreadsheets will change it to capital letters.

By default (unless you change it) Boolean data is center-aligned in a cell.

Numbers are, in their own way, Boolean. 0 is FALSE and any other number (including negative numbers) are TRUE.

## Other types

Cells can contain links that you can click. This data is text-like but contains the additional information of the website to which you will be taken.

### Images

Images can be placed in cells to be displayed and manipulated by formulas.

They can also float 'over' cells and be positioned anywhere in a spreadsheet.

### Charts

Similar to images, some simple charts can be contained within the confines of a single cell.

Other charts can float 'over' cells and be positioned anywhere in a spreadsheet while referring to specific data within the spreadsheet.

Data Type Exercises
Enter a formula for each question in the formula bar for the spreadsheet below to access the next lesson.
1. Big Number
In cell B1, enter the number of cells you can have in a Google Sheet (5,000,000). Remember to start your formula with '=' and remove the commas from the number.
2. Small Number
In cell B2, enter 0.14159. Remember to start your formula with '='.
3. Text
In cell B3, enter "Hello, World!" as text. Remember to start your formula with '=' and start and finish the text with double quotes.
4. Boolean
In cell B4, enter TRUE. Remember to start your formula with '=', no need for double quotes this time.
 A B C 1 Big number 2 Small number 3 Text 4 Boolean 5 6
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