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

Equipment:

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

(C) NMCC

Redaktør Svein H. Torkildsen