Q: I have pictures on my iPad and they are backed up on my icloud, if I delete them off of my iPad, will they be deleted or stored on my icloud

The only photos backed up up on iCloud is your Camera Roll when you run iCloud Backup and they can't be accessed without restoring your whole devices.

Photo Stream is not a backup. It is a sync tool.

Photo Stream only holds 30 days of photos on the server and 1000 photos on your iOS device.

To keep them safe, all your photos should be transfered to your computer and backed up.

Once they are safely on your computer, then delete them from your iPad.

iOS: Importing personal photos and videos from iOS devices to your computer

Glad to help.

Photo Stream is widely misunderstood and leads to numerous posts about lost photos.