Okay, so I'm not having trouble with the numbers themselves, I do know them, but one thing confuses me; why is it that I must include the der, die, or das for it? It askes me to translate (for example) 'the seventeen', rather than just 'seventeen', or 'the six' rather than 'six'. Is there any reason for this?
seventeen is just siebzehn. If you want to say "the 17" you mean "the (number) 17)" so it's "die siebzehn" as a special one.
Sometimes DL is a bit weird. Of course do we Germans count "eins, zwei, drei, ...". There is no way you will find one counting "die Eins, die Zwei, die Drei,...".
Since I'm too lazy to start another thread, today while doing the Second number section o answered something along the lines of one hundred twenty-one in English and was scored incorrect for not answering one hundred and twenty-one by the DL app. As a native English speaker I know that nobody says and between those. DL might want to correct this issue so that non-Native speakers can avoid unnecessary words.