Voice interpretation of numbers

Why does the micrphone keep interpreting e.g. ventidue as "22" and then giving you only 50%
It happens for virtually all the times in the lesson on telling the time and is very frustrating!!!!

I may be wrong but it looks like the software, as currently written, rates only one text-strings as the fully acceptable (100%) answer. This seems to apply to several Rocket tests and answers, not just number-related ones. There are usually several correct translations for any spoken or written phrase, and Rocket rightly needs to limit the number of those acceptable at each learning stage. But it should be possible for the software to accept and rate as correct (100%) at least a limited range of equally correct texts. I think Rocket is working on this.