LittleCherub, the tester just said she did not use the lowest Digit Span score. I could have asked why if I had read this forum ahead. I suspect myself this number maybe abnormal for whatever reason.

Thanks Dottie. Actually I don't observe my son's short term memory is bad. He can do multiple step math word problems in his head.

Thanks Grinity. I get your point. I will have to spend time looking for playmates for him.