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Dau 20 de puncte daca raspundeti corect la operatia asta:
1-1×1+1-1+(90-89)=?
Care raspunde corect are 20 de puncte!!
Succes!!


Răspuns :

1-1x1+1-1+(90-89)=

=1-1x1+1-1+1

=1

1-1*1+1-1+(90-89)
1-1*1+1-1+1
1