Răspuns :
268+168=436
268+372=640
268+639=907
268+499=767
268+567=835
268+408=676
268+590=858
268+372=640
268+639=907
268+499=767
268+567=835
268+408=676
268+590=858
168+268=436
372+268=650
639+268=907
499+268=767
567+268=835
408+268=676
590+268=858
372+268=650
639+268=907
499+268=767
567+268=835
408+268=676
590+268=858