Children’s book about learning to read through numbers

[Engi]

I had this book when I was a kid (around 15-20 years ago) called “learn to read by/with numbers” and there was another one as well “learn to read by…” something else. The books were brightly coloured (lots of yellow and blue), and had sort of cartoonish bears on them, holding balloons, and lots of photos inside and some short chapters to read. The book about numbers was basically a story about this bear and he was having a birthday party so there was a little story about that and he would be counting his guests, presents etc. So learning reading and numbers with a cute story. And the other book was about reading more so. I totally forget the title or much about it but I learned to read with it and it was so sweet and the illustrations were so nice I wish I could find it again.