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QUICK ANSWER
"As well as" is a phrase which is often translated as "además de", and "in addition to" is a phrase which is also often translated as "además de". Learn more about the difference between "as well as" and "in addition to" below.
as well as()
A phrase is a group of words commonly used together (e.g., once upon a time).
a. tan bien como
I could never play soccer as well as my brother can.Nunca pude jugar al fútbol tan bien como puede mi hermano.
in addition to()
