Hey, kids, it's not just you

Well whadda know?

Those low and declining test scores for our school kids? Looks like the kids come by it honestly.

Yes, recent news about standardized test scores in Philly public school pupils being down two and a-half points in reading and four points in math sure don't seem much an endorsement of schools, teachers or learning ability.

But wait.

Now comes a study that adults are, well, in the same class.

The first-ever ratings of U.S. grownups compared to adults in other democracies around the world shows Americans are below average in literacy, math and computer skills.

The study compared 5,000 U.S. adults aged 16 to 65 with like samples from 21 other countries.

In literacy, Americans trailed 12 other countries. Top performers were Japan, Finland, the Netherlands and Australia.

In math, the U.S. scored behind 18 countires, besting only Italy and Spain.

And in digital skills and solving tech problems, we lagged behind 14 nations.

"These findings should concern us all,” U.S. Education Secretary Arne Duncan said in a written statement. “They show our education system hasn’t done enough to help Americans compete — or position our country to lead — in a global economy that demands increasingly higher skills.”

Yeah, well, they also show our apples aren't falling far from our trees.