I understand that typically an en dash ( – ) is used when presenting a range of numbers. For example, when representing a range of years such as "1990 – 2000."
My question pertains to instances in which you have a range of years but choose to shorten the latter year by dropping the century. Do you still use the en dash in this instance, or is a hyphen instead correct?
Specifically, which is correct: "1950 - 60" or "1950 – 60?"
As a follow up, is it proper to include spaces in this instance or to leave no spaces?
For example: "1950 - 60" or "1950-60?"