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La o intreprindere avicola ,600 de oua au fost ambalate cîte 10 in cofrage mari si cîte 5 in cofrage mici.Cîte cofrage mici erau,daca au fost completate 10 cifrage mari?

Răspuns :

100 cofrage mici
10*10=100
600-100=500
500:5=100
10x10=100 oua in cofrage mari
600-100=500 oua ramase
500:5=100 cofrage mici