Răspuns :
Răspuns:
300,600,900,1900,3900,6000.Rotunjire
300-10-2 ,. 500-50-5 , 800-60-7 , 1000-800-60-4 , 3000-800-50-9 , 5000-900-60-5 . Descompunere
Răspuns:
312=300 312=300+10+2
555=600 555=500+50+5
867=900 867=800+60+7
1864=2900 1864=1000+800+60+4
3859=4900 3859=3000+800+50+9
5965=6000 5965=5000+900+60+5