This is rather like SAT from 35 years ago.
Same strategies apply for guessing the unknown especially with a modicum(it was on the test!) of Latin knowledge..
Strange that pretty every one here is getting 70k estimates (93/100 for me).
Feels a bit high at least for me as a non-native speaker.
I got 2 words I knew wrong, and guessed about 5 unknown words correctly. Those were bizarre repetitive words I've never seen before.
I remember doing a similar test from a reputable university about 10-15 years ago also in an app format and only got about 30k estimate.