Összeadás 4.                                                                       ×vissza

9. feladat                                                                                                                                          megoldás

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