In one place kettoszaz was the correct answer and here it was not accepted. Why?I though they wanted ketto because of the het to accentuate the difference between them if the sound were unclear.
I think in everyday language both are used but it is kétszáz, which is correct. Kettő and két both means 2, but kettő stands alone while két is part of composite words (like kétszáz) or it is an adjective. Hány könyved van? Kettő. BUT két könyv van az asztalon.