Yes, you can use them in any order you wish. You can choose any set of Disposable Logins to use from your printed list. This means you can use them in random order if you would like too. Just cross it off when you are done, because (of course) they can only be used once.
It does not matter if you use them in random order, or use some, then login normally, then use some more. Your Disposable Logins remain active until the expiration date, or until used.