In the five Nordic Countries there are
Math competitions for students of age 14-15.
The competitions are for whole classes:
in Iceland and Norway 9th grade,
and in Denmark, Finland and Sweden 8th grade.
The competitions are named
Nordisk Matematikkonkurrence in Denmark
MatCup in Finland
BEST in Iceland
UngeAbel in Norway
SigmaÅtta in Sweden
cards With values 1-9
paper with boxes for placing the Cards in.
Place the nine cards in the boxes so that the sum
along the three sides will be the same.
Find as many possible sums as you can.
A part of the Swedish Exhibition NMCC 2015
Redaktør Svein H. Torkildsen