1. Patru prieteni, cam grăbiţi, au calculat suma 23,41 + 1,834 astfel: Mara: 23,41 + Tom: 23,41 + 1,834 1,834 4,175 24,244 Cristi: 23,41 + Mira: 23,410+ 1,834 1,834 25,244 24,444​