software update trying to download already updated software

I have the latest version of Yosemite, including the recovery update, and updated all of my apps in the last month, including Keynote, Pages, Numbers, iMovie, and iPhoto. I tried to delete iPhoto once the crap app Photos became the default photo app on my old MacBook Pro, (2009.. yes.. I know.. ancient), but the app store continues to say it is updating all these apps and keeps trying to download iPhoto even though I don't need it. I don't use this computer for editing photos, so don't have my main photo app installed here, Aperture, that is on my home computer. Is there a way to reset the App Store or software update so the computer will recognize that apps are updated and stop re-downloading them? I can't use some of these apps because they are awaiting update. As soon as I let the update process complete, it reverts and again tries to update them. Some of them are hung up, too, and won't even start downloading, but I can't use them because they are being updated, according to the computer. I don't have this problem on my MacMini at home.