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Rotunjește la mii ,zeci,sute numerele:3992,5676,2891,8473,70401215,2005

Răspuns :

3992-3000,900,90,2
5676-5000,600,70,6
2891-2000,800,90,
8473-8000,400,70,3
7040-7000,40
1215-1000,200,10,5
2005-2000,5