|Achieve mastery in 4-digit addition with carrying, 4-digit subtraction with borrowing , Multi-digit multiplication, Div. 4|
|Energy point(s) awarded||500|
Journeyman Arithmetician is a Moon badge. To earn it, the user had to achieve mastery in several certain exercises:
- 4-digit addition with carrying
- 4-digit subtraction with borrowing
- Multi-digit multiplication
- 4-digit division
This badge motivated users to become proficient by practicing more exercises, especially Arithmetic ones.