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9×8-[7÷7+(6×5-5×4)÷5+4(3-2÷2)-]÷10​

Răspuns :

9*8-[7:7(6*5-5*4):5+4(3-2:2)]:10=72-(1*10:5+4*2):10=72-(2+8):10=72-10:10=72-1=71

Răspuns:

=72-[1+(30-20)÷5+4(3-1)]÷10

=72-(1+2+8)÷10

=72-1=71