It’s a tale of two school systems: All 53 students at Success Academy Bronx 2 aced this year’s state Algebra 1 exam, with top scores of 5 on the 1-5 scale. Only about 2% of kids in the regular District 9 public schools who take the test manage 5s, and half don’t even score a passing 3.

Citywide, only a third of regular public school eighth-graders took the Algebra 1 Regents last year; 82% passed with a minimum level 3 score. Meanwhile 99% of the 467 eight-graders at Success Academy schools scored 3 or better, with a majority getting 5s.

The success of the SA kids is proof positive that more disadvantaged kids deserve the option of a charter school experience. But state lawmakers won’t amend the law to let more charters open.

City Department of Education data suggest that many regular schools in poor, minority nabes are doing fine, with more than 90% of students in grades 6-8 passing their math and English Language Arts classes. But, as Susan Edelman reported in Sunday’s Post, less than 10% of kids in the same schools pass state math and ELA exams.

“It’s apples and oranges to compare students’ classroom grades over the course of a full school year with their performance on a two-day state exam,” sniffed DOE spokeswoman Danielle Filson.

Funny: It’s apples and apples at the city’s public charter schools, who routinely score proficient on state tests to match the grades they earn for their classroom work.

Sure looks like DOE schools are just letting kids pass, even though they haven’t remotely learned what they need to.

Charter critics routinely whine that Success somehow simply grabs the smartest kids in the district. But the fact is that many more kids in these low-income districts are acing state tests than did in the days before SA and other charters opened their doors: That’s proof that they’re simply providing the opportunity to excel that DOE schools don’t.

By the way, more than 90% of scholars at SA Bronx 2 qualify for free lunch: These kids are as low-income as their peers, but lucky enough to have won the lottery to attend a great school.

Sure would be nice if New York’s progressive leaders would let charters expand, so more children could have the same chance.