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Calculati, respecdand ordinea efectuarii operatilor
(9•9-7•8)+9•6-7•4=


Răspuns :

(9•9-7•8)+9•6-7•4=
=(81-56)+54-28=
=25+54-28=
=51
[tex](9*9-7*8)+9*6-7*4=\\ =\ \textgreater \ (81-56)+54-28=\\ =\ \textgreater \ 25+54-28=\\ =79-28\\ =51[/tex]