Making teens numbers from 10 and some more.
Make a Track
Knowing the number before and after any number from 1 to 10
What's Before Beryl?
Saying the number before any number up to 6, then 10
Dig for Acorns
Subtracting 1 from any number from 2 to 6, and then from 2 to 10, by saying the number which comes before