Complete the addition table in number base 6, given the sets A = 1,2,3,4 for rows and B = 0,1,2,3 for columns.

The missing values correspond to the following additions:

• $2 \oplus 3$
• $3 \oplus 2$
• $4 \oplus 1$

• For $2 \oplus 3$: In base 10, $2 + 3 = 5$. Since $5 < 6$, the value in base 6 is $5_6$.
• For $3 \oplus 2$: In base 10, $3 + 2 = 5$. Since $5 < 6$, the value in base 6 is $5_6$.
• For $4 \oplus 1$: In base 10, $4 + 1 = 5$. Since $5 < 6$, the value in base 6 is $5_6$.

The completed addition table in base 6 is:

The completed table is shown above.