Go to the Play store (in a browser in your computer). Apps (on the left). My Apps. That's all the apps you've installed.
Go to each one (I use an add-on in Firefox so I can right-click to open the link in a new page). You'll see that the button is marked Installed. Ignore that and click on it. It'll install the app. (Make sure you're installing to the right phone if you have more than one.)
Just go down the list, one app after the other, until they're all installed.
(I'd turn off data and use wifi, or you could use up your data allowance for 2014 pretty quickly.)