Mathematic · K–12 math practice and worksheets · In active development · early access
A K–12 math practice home, built in the open — starting with a deterministic worksheet generator whose every answer key is computed exactly, not guessed by a model.
Mathematic is a place to make math practice. The part that is already built is a worksheet generator: give it a seed, a grade, an operation, and a count, and it draws a sheet of add, subtract, multiply, or divide problems with a matching answer key. Every answer is COMPUTED by exact integer arithmetic and re-checked, so a key is never wrong and there is no AI in the arithmetic. The name is the plain descriptive word for math, chosen because that is exactly what the tool is for. Interactive student practice, auto-grading, and standards-aligned curriculum are being built next — and this page is honest about which is which.
Mathematic is being built in the open. The deterministic worksheet engine is real and shipped as a library, but the public self-serve math app is still being wired, so this is not yet generally available. This page describes what is built and where it is going; the honest next step is to ask about early access.
What Mathematic is
Mathematic is the home for K–12 math practice: the worksheets a student drills on and, over time, the interactive practice and grading built around them. The name is the plain descriptive word for math — a generic, descriptive name for a math tool, the same reason the sibling music suite is called by the plain French word for music. It says what the tool is for without dressing it up.
The honest shape of the thing today: one piece is built and real — a deterministic worksheet generator, described in full below — and the rest is early access, being built in the open. The worksheet engine exists as a library primitive: correct, tested, and free, but not yet wired to a page a teacher clicks and prints from. So this page presents the engine truthfully and is careful not to present the not-yet-wired parts as finished.
Two rules hold across the whole page. There is no AI in the arithmetic: answers are computed by exact integer math and verified, never produced by a model. And there is no standards-certification claim: a grade setting scales the number range, and the most this page will ever say about standards is “aligned to” — never approved, certified, or accredited.
The worksheet generator: computed answer keys, no guessing
This is the built substrate. It is a deterministic math problem-set generator: given a spec, it draws a sheet of problems and a matching answer key in which every answer is exact integer arithmetic. It is free, it holds no personal data, and there is no model anywhere in it. These are the properties it is built on.
Four operations, grade-scaled ranges
Add, subtract, multiply, and divide. A grade setting caps how big the numbers get — a small ceiling for the earliest grades, larger ranges as the grade rises — and a caller can set a tighter operand ceiling on top of that. The grade is a number-range control, not a curriculum claim.
Answer keys computed, then verified
Every key is exact integer arithmetic: a plus b, a minus b, a times b, and for division a whole-number quotient with its remainder. A separate check RECOMPUTES each problem from its operands and confirms the stated answer matches. A worksheet is worthless if a single key is wrong, so the generator proves its own keys rather than trusting them.
Deterministic from a supplied seed
The same seed produces byte-identical problems every time. The generator is seeded by a supplied integer and driven by a small inline pseudo-random routine — there is no clock, no system randomness, and no hidden state. Two runs of one spec deep-equal, which is what makes a sheet reproducible and shareable.
Clean division, no negatives by accident
Division problems carry an exact quotient and a remainder, and an exact-divide flag guarantees the divisor divides evenly when you want no remainder. Subtraction without a negatives flag orders the operands so the answer is never negative. The sheet matches what you asked for instead of drifting into cases you did not mean.
Fail-closed, up to 200 problems
A sheet can hold up to two hundred problems. An invalid spec — a bad seed, grade, count, operand ceiling, operation, or flag — is flagged and returns no problems at all, rather than a half-valid sheet. It refuses to emit something wrong.
No AI, no personal data, free
There is no model call in the arithmetic path: answers are computed, not generated. A problem carries only integers and an operation tag — no names, no emails, no student references — so a sheet holds no personal data. The worksheet content is free; there is no charge and no checkout for it.
Honest caveat: this engine ships today as a library primitive. It is real and tested, but it is not yet wired to a public self-serve page you can open and print from — that UI is being built. On the wider platform, a teacher-facing content generator already produces deterministic, templated worksheet and quiz-outline material from a topic and terms, free and always available, with any live-model mode held off rather than allowed to fabricate. Bringing the seeded arithmetic engine onto its own public route is the early-access work.
What is early access, being built next
These are described as design and direction, not shipped features. Each is in active development; none is something you can use today. They are here so the page is clear about the gap between what is built and what is planned.
Interactive student practice
A student-facing surface where problems are worked on screen rather than only printed — the same computed problems, answered interactively. This is a plan built on the existing engine, not a running product yet.
Auto-grading
Because every answer key is already computed and verifiable, checking a student’s response against it is a natural next step. Auto-grading against the exact key is a design intent, still being built.
Adaptive practice
Adjusting the range and mix of problems to where a student is, using the grade and operand controls the engine already exposes. This is a direction for the practice surface, not a claim of a working adaptive system today.
Any tutoring stays honest-off
If a tutoring or explanation feature is ever added, it will be labelled plainly and will never be allowed to invent a math answer. The arithmetic stays computed and verified; a model, if present, would explain, not decide the answer. Nothing of the kind is live now.
Curriculum alignment, stated honestly
A grade setting on a worksheet does one thing: it scales the number range. It is not a standards judgement, and it is not a curriculum. Mathematic will not tell you a sheet is “approved”, “certified”, or “accredited” by any standards body, because that would not be true.
The most this page will ever claim is that practice can be aligned to a given topic or grade band — a mapping, described plainly, from a worksheet to the skills it drills. The platform maintains free curriculum and standards material that such a mapping can reference, and cross-linked below. Alignment framed as “aligned to” is a design intent for a later version; it is not a certification, and it is not presented as one.
Who Mathematic is for
Mathematic is for the people who set and work through math practice. A teacher or adviser can generate a clean sheet of arithmetic with a correct answer key, reproducibly, from a seed and a grade — the same seed gives the same sheet, so a class set and its key stay in step. A student, once the practice surface is wired, can work the problems and, in time, have them checked against the exact key. A math program gets a generator whose keys are proven rather than trusted, with no personal data in the sheets and no charge for the content.
The through-line is correctness you can check. The problems are computed, the keys are recomputed to verify, and the tool refuses to emit a sheet it cannot stand behind. That is the honest foundation the rest of the practice experience is being built on.
Where the build is, honestly
Mathematic is in active development. In active development One piece is genuinely built — the deterministic worksheet generator, which is real, tested, and free — but it ships as a library primitive, not yet on a public self-serve page. The interactive practice, auto-grading, and adaptive curriculum described above are plans built on that engine, not finished products. This page is careful to keep those apart.
What is settled is the foundation: correct arithmetic, computed and verified answer keys, reproducible sheets from a seed, no model in the math, and no personal data in a problem. What is still being built is the public surface that puts all of it in front of a teacher and a student. We would rather tell you that plainly than dress an in-progress build up as finished.
If this fits what you are trying to do, early access is how you get in while it is being built and help shape where it goes. There is no price on this page and no checkout — just a way to start the conversation.
Common questions
Is Mathematic available to use right now?
The worksheet generator is built and real, but it ships as a library primitive, not as a public self-serve app you can open and print from today. That UI is being wired. This page is honest early-access: it describes what is built and what is planned, and the way in while it is being built is to ask about early access.
Are the answer keys generated by AI?
No. Every answer is COMPUTED by exact integer arithmetic — a plus b, a minus b, a times b, and a whole-number quotient with remainder for division — and a separate check recomputes each problem to confirm the key matches. There is no model in the arithmetic path. Answers are calculated, never guessed.
What can the worksheet generator actually do?
Given a seed, a grade, an operation, a count, and a couple of flags, it draws up to two hundred add, subtract, multiply, or divide problems with grade-scaled number ranges and a computed answer key. The same seed produces byte-identical sheets. Division carries a quotient and remainder; an exact-divide flag removes the remainder when you want it to; and subtraction avoids negative answers unless you allow them.
Is it aligned to standards or certified?
It is not certified. A grade setting scales the number range and nothing more. The most this page will ever claim is that practice can be aligned to a topic or grade band — a plain mapping, and a design intent for a later version — never approved, certified, or accredited by any standards body.
Does it handle interactive practice or auto-grading yet?
Not yet. Interactive student practice, auto-grading against the exact key, and adaptive practice are early access, in active development, built on the engine that already exists. They are described here as direction, not as features you can use today.
Does a worksheet hold any student data?
No. A problem carries only integers and an operation tag — no names, no emails, no student references — so a generated sheet holds no personal data at all.
How much does it cost?
There is no pricing on this page. The worksheet content is free, and Mathematic is in early access — the honest next step is to ask about access and talk through what you need, not to check out.
Why the name Mathematic?
It is the plain descriptive word for math. It is a generic, descriptive name for a math tool, chosen for exactly that reason — the same rationale as the sibling music suite named by the plain French word for music.
Related surfaces
Mathematic is the tool for math practice. These adjacent destinations cover the wider platform, the grading substrate next door, and the neighbouring free and creative surfaces.
homeroom.software
The flagship platform brand home and the wider product family Mathematic belongs to. The full picture of the platform and every tool on it.
reportcard.software
The grading and gradebook substrate sibling. Adjacent, not the same product — that records and reports grades; Mathematic generates the practice a student works on.
freeschoolcurriculum.com
Free curriculum and standards material a worksheet mapping can reference. A sibling free resource.
composition.software
The writing desk for student authors — prose, revision, and the literary magazine. A sibling creative tool for text rather than math.
musique.software
The owned music-creation suite, and the naming twin: “Musique” is the plain French word for music the way “Mathematic” is the plain word for math. A sibling creative tool for sound.
What this page is and is not claiming
Mathematic — a K–12 math practice home whose built substrate is a deterministic worksheet generator for add, subtract, multiply, and divide — is in active development and is not yet a public self-serve app. The worksheet engine is real and free, but it ships as a library primitive; interactive practice, auto-grading, and adaptive curriculum are early access. There is no AI in the arithmetic: every answer key is computed by exact integer math and recomputed to verify. There is no standards-certification claim: a grade scales the number range, and “aligned to” is the most this page will ever say. No competitor brand names appear on this page. The worksheet content is free; money, pricing, and checkout are not on this page. The honest next step is to ask about early access.