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TRIPLEAZA DIFERENTA URMATOARELOR NUMERE APOI MICSOREAZA DE 100 DE ORI 810-210=
624-224=
783-62-219=


Răspuns :

810-210=600
600x3=1800
1800:100=18

(624-224)x3:100=400x3:100=1200:100=12

(783-62-219)x3:100=502x3:100=1506:100=15,06