The addition of integers
Operations with integers I
 
4. Complete this magic square with integers.
  Esta unidad interactiva requiere la máquina virtual de Java J2RE.

Distribute the numbers below to the empty cells in order to fill this magic square with integers.

All the horizontal, vertical and diagonal rows must have the same outcome.

In every 4x4 magic square you will also get the same sum by adding up: the four central numbers, the four numbers in the corners of the square and the four numbers in the corners of each horizontal rectangle that can be formed with 8 cells.
       
           
  Eduardo Barbero Corral
 
Spanish Ministry of Education. Year 2007
 
 


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