A square array of numbers is called a magic square when all rows of numbers and all columns of numbers and all diagonals of numbers have the same sum.

For example:

Problem 1

Complete this 3 x 3 magic square using the odd numbers from 1 to 9. The completed magic square will have the nine numbers 1, 2, 3, 4, 5, 6, 7, 8, and 9 each once.

Problem 2

Complete this 4 x 4 magic square using the even numbers from 0 to 14. The completed magic square will have the 16 numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 each once.

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