Răspuns:
67+10-1=77-1=76
128+100-1=227
3287+1000-1=4286
59+10-2=67
345+100-2=443
5498+1000-2=6496
58+12-1=69
165+100+1=176
3259+1000+1=4260
79+11+1=91
542+100+2=644
2685+1000+2=3687
