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Calculeaza efectuind ordinea operatiilor:
25+54:6:3×10-49:7×4=


Răspuns :

25+9:2*10-7*4=25+4,5*10-28=25+45-28=70-28=42

54:6=9:3=3x10=30
49:7=7x4=28
30-28=2+25=27