This is an example of one of the websites that uses the term midly gifted to refer to those that fall into the 115-129 range.
Are scores different in Australia? Anyway I believe that the suggestion is that midly gifted children (who probably are better off being called bright so as not to confuse the issue)do not need to skip grades or go to special classes but may benefit from some extension work.
http://www.gifted-children.com.au/levels_of_giftedness.Lastly I forgot to mention that while my daughter is stuggling to get good marks in English and Maths she does well in most other areas of the curriculum in particular Art, Music and PE. So I suppose her strengths and interest probably lie in the creative realm.