We're sorry that you're frustrated with the ABC Resources page on your iPad. The main issue you're running into is that there is no way to save files on an iPhone or iPad without using a third-party app, such as Dropbox, Google Drive, or iCloud. Apple has this restriction in place in its mobile software, so there's nothing we can do about that.
You will need a cloud storage app with which to save the file. This guide should help with that: https://www.businessinsider.com/where-are-downloads-on-ipad
Alternatively, by far the easiest way to get files on your iPad is to download the files onto your computer, import them into Music and TV, then sync your iPad with your Mac. If you have Windows, use iTunes for this process.
Also, for your information, the new ABC Resources page (https://myanswers.com/edu/resources/) lets you download files individually, and the old page (https://myanswers.com/edu/resources/v1/) lets you download them in complete lesson .zip files. We will be adding complete lesson download functionality to the new page, but it isn't out yet.
If you're just using your iPad to view files, the new page should let you view the files, but you'll need to save them to an app if you want them to remain on your device (see the guide above for more on that).
The files on the old page are mostly in .zip files, so you would need to first extract them before following the same procedure as outlined in the guide. This guide should help with .zip extraction:
Customer support service by UserEcho