The subtraction of natural numbers
Operations with natural numbers I
 

5-a Subtract the outside number from each number of the magic square.
  Esta unidad interactiva requiere la máquina virtual de Java J2RE.

In this exercise you must subtract the outside number from each number in the square.

The numbers below are the results for the empty cells. Take them to their corresponding cells.

5-b. Subtract the outside number from each number of the magic square.

  Esta unidad interactiva requiere la máquina virtual de Java J2RE.

This exercise is similar to the previous one but you must fill all the cells.
       
           
  Eduardo Barbero Corral
 
Spanish Ministry of Education. Year 2007
 
 


Except where otherwise noted, this work is licensed under a Creative Common License