This product covers addition within 15. Each card is linked to a Google Drive picture and should work with school wifi. My school has pretty strict restriction on opening links and I have had no problem.
I have used this with my kindergarten class. Simply print the cards, scan with a QR reader, and write the number sentence on the answer recording page. I laminated my answer pages to be used in a station and it works great!
-14 QR code cards
-Answer recording page