My 7 y.o. took both the Wisc V and the Woodcock Johnson Achievement Tests. I'm wondering how it is possible to score at such an outlier on the Applied Problems subtest without what seems to me to be the corresponding WISC scores? Child is not "hot-housed"/accelerated, has never taken any extra math enrichment classes. The achievement scores are due to any natural understanding of math and what he's pick up on own.
I plan to bring this to the school to argue for subject acceleration, but wonder if they'll push back because WISC results are not at the same levels. I imagine his needs are very different depending if we're talking about a child who is in the top 5% vs top 1% versus top .01%-.2%. Could my 7yo have an exceptionally gifted math brain with "only" a 125 IQ? Seems like a disconnect somewhere to me. Anyone have a perspective on this?

Achievement tests:
Applied Problems subtest 154 (99.98%)
Math Overall 143 (99.79%)

WISC
FSIQ 125/GAI 127 (95%/96%)
Highest indices were VSI = 135 (99%) and QRI = 139 (99.5%)
Everything else was ~120s, except working memory/processing speed which were ~100.