Jill is making a magic multiplication square using the numbers 1, 2, 4, 5, 10, 20, 25, 50, and 100. The products of the numbers in each row, in each column, and in the two diagonals must all be the same. In the figure you can see how she has started. Which number must go in the cell with the question mark?
+26367 Jill is making a magic multiplication square using the numbers 1, 2, 4, 5, 10, 20, 25, 50, and 100.
The products of the numbers in each row, in each column, and in the two diagonals must all be the same.
In the figure you can see how she has started. Which number must go in the cell with the question mark?
