Clear the board of numbered hexagons by moving them into the portal. To move hexagons, combine 2 even or 2 odd numbers to create the average value. Only hexagons that are adjacent to the black portal can be moved inside.
Math Hop - Learning Connections
Averages - play with average values
Common Core Connection for Grades 4+
Recognize that a measure of center for a numerical data set summarizes all of its values with a single number.