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6×9:[6-(13-18:2)]=,. [(9-6)×(8+9)]+100:(4+6)=

Răspuns :

a). 6×9:[6-(13-18:2)]=
54:[6-(13-9)]=
54:(6-4)=
54:2=27

b). [(9-6)×(8+9)]+100:(4+6)=
(3×17)+100:10=
51+10=61