Directions: Use four of these dominoes to form a square with the same number of dots on each side.
Hint
What is the largest sum you can make?
What is the smallest sum you can make?
What is the smallest sum you can make?
Answer
There are two known answers, one where the sum or each side is equal to 13.
Here’s another where the sum of each side is equal to 14.
Source: Joshua Nelson