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(126×291)÷7-1549-39÷13=.? (220+290)÷17-(210÷15)=?

Răspuns :

1)(126×291)÷7-1549-39÷13=36666÷7-1549-3=5238-1549-3=3686

2)(220+290)÷17-(210÷15)=510÷17-14=30-14=16