Összeadás 4.                                                                       ×vissza

8. feladat                                                                                                                                          megoldás

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