3x3 magic square 25 total
The constant is 34.
Just take any magic square, and multiply every number by 5. Here you will get another magic square with all numbers multiples of 5.
Think! What if the magic square had an even number of cells. There's your answer.
A 1-9 magic square must add to 15.
Albrecht Dürer drew a 'magic square' in his engraving 'Melencolia I'. But I do not think he invented it.
A normal 3x3 magic square has a sum of 15. So you subtract 3 from each number in the square.
draw it
No.
jack
the magic sum is 15
A 3x3 magic square means that each row, each column, and both diagonals all have the same sum.