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(618-267)+(606-295)+(550-498=

Răspuns :

351+(606-295)+(550-498)
351+311+(550-498)
351+311+52
=714


618-267=351
606-295=311
550-498=52
351+311=662
662+52=714


                                                                            R: 714


                                             COROANA?