Thanks for all the feedback.

Yes, I have the subtests for WJ

Letter-Word Id - 156
Passage Comp - 135
Reading Flue - 140
Word Attach - 141

Calc - 129
Applied Problem - 133
Math Fluency - 111

Spelling - 146
Writing Samples - 146

In the report they also commented my DS had troubles with simple math (1+3 on paper). I found that odd because he knows all his addition / subtraction upto 20. My only guess is he took the WPPSI and WJ back to back (with WJ last) and he was getting tired.