Why do this problem?

This problem one which requires some knowledge of both place value and different bases. Working in another base can help with real understanding of our base-$10$ number system.

You could start this by either explaining or re-visiting counting in a base such as $6$. Base $7$ could be introduced using the days of a week as an example.

Key questions

If Zios count in $3$s, what will their first 2-digit number be in human numbers?

If Zepts count in $7$s, what will their first 2-digit number be in human numbers?

What is $122, 22, 101, 41$ in Zio counting?

What is $122, 22, 101, 41$ in Zept counting?

Would drawing a sketch help with sorting out the four compass points?

Possible extension

Learners could make a similar puzzle for themselves, or go on to this similar problem: Basically.

Possible support

Suggest trying Alien Counting instead which is a simpler problem of the same type.