



 
Hi Sue, If you subtract 350 from each element of the magic square you have I think you will find you have a magic square composed of the integers from 1 to 16. The sum of each row, column and diagonal being 34. If you add 190 to each entry in this magic square you will obtain a magic square with the row, column, diagonal sum being 4 × 190 + 34 = 794. Off by 2. Can you see how to add 2 to 4 of the entries in this magic square to give one with the sums being 796? Penny  


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