Saturday, December 18, 2010

Sumas y restas

Suma1                                            Suma2                                       Suma3 

Suma4                                            Suma5                                       Suma6

Suma7                                            Suma8                                       Suma9

Suma10                                          Resta1                                        Resta2

Resta3                                              Resta4                                        Resta5
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