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1)Aproximati o zecime : a)prin lipsa ; b)prin adaos ; c)prin rotunjire.Urmatoarele fractii zecimale: 3,123 ; 15,67 ; 4,236 ; 15,272.
2) Aproximati o sutime: a) prin lipsă;b)prin adaos; c)prin rotunjire.Urmatoarele fractii zecimale: 0,2403 ; 12,176 ; 13,243 ; 11,176.​


Răspuns :

1. 3, 120; 3,130; 3,120;

15,60; 15,70; 15,70;

4,230; 4,240; 4,240;

15,270; 15,280; 15,270;

2. 0,2400;0,2500;0,400;

12,100;12,200;12,200

13,200;13,300;13,200

11,100;11,200;11,200