Hello! I am new here

My 3rd grade son took the ITBS and scored 97% math, 94% reading and 97% core composite. I had him take the SCAT because he was interested in some summer programs. I was really surprised that he only got 46% (434) in quantitative and 31% (422) in verbal (took the 5th grade test). He usually tests well. I don't know if maybe I should have him re-tested in a year or just call it a day. I did not reallt prepare him ..just told him to relax and do his best. Any other opinions/experiences with the SCAT?