Răspuns :
Răspuns:
1. - 9+[8-(13-4)]= - 9+(8-9)=-9-1= -10
2. 12-[6-(15-8)]= 12-(6-7)=12-(-1)=12+1= 13
3. - 17+[9-(3-10)]= -17+[9-(-7)]= -17+(9+7)= -17+16=-1
Răspuns:
1. - 9+[8-(13-4)]= - 9+(8-9)=-9-1= -10
2. 12-[6-(15-8)]= 12-(6-7)=12-(-1)=12+1= 13
3. - 17+[9-(3-10)]= -17+[9-(-7)]= -17+(9+7)= -17+16=-1