Open Middle®
Directions: Use four of these dominoes to form a square with the same number of dots on each side.
Hint
What is the greatest sum you can make?
What is the least (smallest) sum you can make?
What is the least (smallest) sum you can make?
Answer
There are many possibilities. One possibility is the sum of each side is 11.
Another solution is the sum of each side is 12.
Source: Joshua Nelson
27
11 and 12 for the sum of each side
The solution of 8 on each side and 7 on each side is also possible