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Calculeaza prin scaderea repetata: 2000:400= ;120:30= ;60:15= ;284:71=

Răspuns :

2000:400=2000-400-400-400-400+400=6
120:30=120-30-30-30-30-30-30=6
60:15=60-15-15-15-15=4
284:71=284-71-71-71-71=4