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Calculeaza,respectand ordinea efectuarii operatiilor: 25+(99-9:9-4x9)=
(6x3)+(54-3x2x8)=
3x(20:10x5)+(63:9-7)=


Răspuns :

1.18+(54-48)=18+6=24
2.
3*10+(7-7)=3*10+0=30
3.25+(99-1-36)=
   25+62=87