too little space on my ipad

Yes,

You can't buy extra storage for your Ipad, as your iPad is set with the amount of GB it come with, but with the cloud you can offload certain things like photos, I believe Apps have to stay on the Ipad.

Give this a read first - What is iCloud? - Apple Support

Delete some stuff on your iPad.

If you go to settings, general, iPad storage, it will tell you how much storage you have, how much is left, what takes up a lot of space.

You can use iCloud to offload some photos and bits to make space