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    angelie's Avatar
    angelie Posts: 2, Reputation: 1
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    #1

    Jul 4, 2012, 05:35 AM
    magic square 3x3 using integers with the sum of 8 and -8
    Complete the three by three magic square using the numbers -10, -7, -4, -3, 0, 3, 4, 7, 10. What is the sum for each row, column and diagonal?
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    angelie Posts: 2, Reputation: 1
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    #2

    Jul 4, 2012, 05:42 AM
    Magic square using the numbers -10, -7, -4, -3, 0, 3, 4, 7, 10.
    Please complete the three by three magic square using the numbers -10, -7, -4, -3, 0, 3, 4, 7, 10. What is the sum of each row, column, and diagonal?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #3

    Jul 4, 2012, 07:23 AM
    Hint: the sum of rows, columns and diagonals of a magic square is the average of all the numbers times three. The middle number goes in the center of the grid.
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    jhermaine Posts: 1, Reputation: 1
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    #4

    Jul 3, 2013, 05:28 AM
    ____
    I -3 I 10i -7i
    I -4 I 0 I 4 I
    I 7 I-10 I 3 I

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