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efectueaza;MXCV-9CDXCV+XXV+XCV+XLV+V)

Răspuns :


1905-( 495+25+95+45+5)=1905-665=1240

nu ai apasat bine la paranteza si a iesit 9 in loc de paranteza deschisa

1095-(495+25+95+45+5)=1095-(520+145)=1095-665=1240