Összeadás 4.                                                                       ×vissza

1. feladat                                                                                                                                          megoldás

  6 8 – 7 9 =        
                     
– 8 4 + 3 5 =        
                     
– 1 2 – 3 5 =        
                     
– 4 7 + 9 6 =        
                     
  3 8 + 1 2 =