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25+54÷6÷3×10-49÷7×4=​

Răspuns :

25+54÷6÷3×10-49÷7×4=

=25+9÷3×10-49÷7×4=

=25+3×10-49÷7×4=

=25+30-7×4=

=25+30-28=

=55-28=

=27

*25+54÷6÷3×10-49÷7×4=25*