Which group of four numbers, arranged in a square, has the largest total?
A  B  C  D  E  F  G  H  I  J  
1  1  2  3  4  1  3  2  3  3  5 
2  2  2  3  5  5  3  2  1  2  4 
3  2  1  2  5  3  3  1  3  5  3 
4  5  1  1  3  2  2  2  4  4  4 
5  4  4  3  2  3  2  1  1  1  2 
6  5  1  2  1  1  1  4  2  3  3 
Which group of four numbers, arranged in a square, has the smallest total?
Topics: Starter  Arithmetic  Mental Methods
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