OR practice exercises

Returns TRUE when at least one condition is true. Below are 2 interactive exercises that put it to work on realistic business data — you write the formula, and get told exactly what went wrong when it does not work.

Syntax

OR(logical1, [logical2], ...)

Practise OR

Ordered from most approachable to hardest.

When OR is the right tool

Returns TRUE when at least one condition is true. It belongs to the logical functions family, and it shows up constantly in real work — which is why it is worth being genuinely fluent rather than merely familiar.

Before this one, it helps to be comfortable with IF. The exercises below assume that ground is covered.

Reading about a function is not the same as being able to write it. The exercises on this page exist because the gap between recognising OR and producing it from memory, correctly, on data you have not seen before, only closes by doing it.

Questions about OR

How do I practise OR without Excel installed?

Every exercise on this page runs in your browser. You type the OR formula into a real spreadsheet grid and get told immediately whether it works — no download, no account.

What does OR do?

Returns TRUE when at least one condition is true. The syntax is OR(logical1, [logical2], ...). The exercises below put it to work on realistic business data rather than abstract examples.

How long does it take to learn OR?

Most people can write a working OR formula within twenty minutes of practice. Getting it right under pressure — with edge cases, unsorted data and ranges that must survive being filled down — is what the harder exercises here are for.