test cls 3

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cls 3

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1. Calculeaza si fa proba dupa model:

Proba inmultiriiProba impartirii2x6=10:2=7x2=1418:2=92x7=1418:9=214:7=29x2=1814:2=72x9=18

2. Calculeaza si fa proba prin operatia inversa:

20:2=______ 18:2=_____12:2=____ 10:2=_________________________________________

3x2=_______8x2=_____6x2=____5x2=____________________________________________

3 Afla catul numerelor de mai jos si fa proba prin impartire si inmultire:

16 si 212 si 220 si 218 si 2

4. In 5 cosuri sunt cate 2 pere. Cate pere sunt in total?

____ x ___ = _____

In 2 cosuri sunt cate 5 pere. Cate pere sunt in total?

___ x ___ = ______

Se pun 8 pere in 4 cosuri. Cat pere sunt in fiecare cos?

___ : ___ = ______

Se pun 8 pere in 2 cosuri. Cate pere sunt in fiecare cos?

___ : ___ = _____