Răspuns:
1 kg + 500 g + 750 g = 1 kg + (500 g + 750 g) = 1 kg + 1250 g = 1 kg + 1.25 kg = 2.25 kg
700 g + 250 g + 450 g = 1400 g + 450 g = 1850 g
485 g + 250 g = 735 g
126 g + 721 g = 847g
362 g + 190 g = 552 g
315 g + 518 g = 833 g
550 g + 654 g = 1204 g