Upload your math exam and answer key; Digital Red Pen generates parallel A/B/C versions — each with its own matched key — for make-up exams and seating-chart anti-cheating. Each version is graded against its own key using keyed grading.
Exam Variants
Parallel versions.
Each with its own key.
One master exam becomes A, B, and C. Each version gets its own matched key and grades to it. No more make-up headaches; no more adjacent-seat answers.
Get started →Two use cases, one tool
Make-up exams
A student who missed the original exam takes a parallel version — different problems, same content coverage. Grade it to that version's matched key. No special accommodations needed; same standard, different form.
Seating-chart anti-cheating
Assign different versions to adjacent seats. Students beside each other have different problems — the answer to question 3 on Version A isn't the same as question 3 on Version B.
What variant generation produces
Parallel exam versions
Each version covers the same content and problem types from the master exam, with varied numbers, order, and structure.
A matched key per version
Each variant comes with its own structured answer key so keyed grading can align student work to the right solution.
Grades to the right key
When grading, Version A students are graded against the Version A key, Version B against B. No mixed-up scoring.
Editable before use
Review each version and its key before printing. The same edit-and-approve workflow as exam authoring — you have final say.
Included in grading
$30
per month · variant generation, exam authoring, and keyed grading included
Get started →Frequently asked questions
How many exam versions can it generate?
The system produces multiple parallel versions — A, B, C, and more — from a single master exam and answer key. The number of versions depends on your use case; typical use is two to four versions.
Are the versions equivalent in difficulty?
The versions are parallel — they cover the same content and problem types from the same master exam. Difficulty equivalence across versions has not been validated, so we describe them as parallel, not equivalent or equal-difficulty. If difficulty equivalence matters for your use case, review the versions before administering.
Does each version get its own answer key for grading?
Yes. Each generated version comes with its own matched answer key. When you grade using keyed grading, each student's exam is graded against the key for their specific version.
Can I use these for make-up exams?
Yes — that is one of the two main use cases. A student who missed the original exam takes a parallel version; you grade it to that version's matched key. The other main use is seating-chart anti-cheating: assign different versions to adjacent seats so neighbouring students have different problems.
Do I need an answer key before I can generate variants?
Yes. Variant generation starts from a master exam and its answer key. If you don't have a key yet, use exam authoring — upload your master test PDF and the system generates a structured key from it, which then feeds into variant generation.