How often do you miss errors in your work?
What does it mean by saying "miss errors"? It is a part of an assessment test.
It means don't notice the errors. According to Webster New world college dictionary one of the meanings of miss is:
to fail to meet, reach, attain, catch, accomplish, see, hear, perceive, understand, etc.
It could suggest a failure to review your own work. Other ways to say the same thing: