Need to download older version of Apple apps on Mac running 10.9. When I attempt to do so, it says it requires 10.10 or later. Then I get error could not complete request.

Mac Book Pro running 10.9.5

I need to download older versions of Keynote, Pages and Numbers. This is what happens:

Download an older version of Keynote?
The current version requires OS X 10.10 or later, but you can download the last compatible version.

[Cancel] [Download]

If I select [Download], this is what I get:

This application requires Mac OS X 10.10 or later.

You must update to Mac OS X 10.10 in order to download and use this application.

[OK]

We could not complete your request.

There was an error in the App Store. Please try again later. (null)

[OK]

I need to download the latest available version for 10.9.5 asap. Any suggestions? (Besides updating to 10.10?)

Thanks!