Math Practice Generator
Generate math practice worksheets for addition, subtraction, multiplication, and division. 5 operation types × 4 difficulty levels (easy, medium, hard, expert), number range parser, allow-negatives toggle, mixed mode, seeded reproducibility, problem validator, Fisher-Yates shuffler, timed mode, answer key, and text/HTML/CSV/Markdown export. 100% client-side.
About Math Practice Generator
Generate math practice worksheets for addition, subtraction, multiplication, and division. 5 operation types × 4 difficulty levels (easy, medium, hard, expert), number range parser, allow-negatives toggle, mixed mode, seeded reproducibility, problem validator, Fisher-Yates shuffler, timed mode, answer key, and text/HTML/CSV/Markdown export. 100% client-side. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
How does the math practice generator work?
Pick an operation (addition, subtraction, multiplication, division, or mixed), choose a difficulty level (easy, medium, hard, expert), set the number of problems and number range, then click Generate. You get a printable worksheet with an answer key — copy to clipboard or download as .txt, .html, .csv, or .md.
What are the difficulty levels?
Easy uses numbers 1-20. Medium uses 1-100. Hard uses 1-1000. Expert uses 1-10000. Each level scales the operand range. You can also override the range manually (e.g. '5-50') for custom worksheets. For division, the divisor is always non-zero, and the dividend is chosen so the answer is a whole number when possible.
Can I generate the same worksheet twice?
Yes. Every generated worksheet uses a numeric seed. If you supply the same seed (visible in the shareable URL), you get the exact same set of problems — useful for retakes, sharing with students, or replaying a specific mix.
What extra features does this tool have compared to others?
(1) 5 operation types (add, subtract, multiply, divide, mixed). (2) 4 difficulty presets (easy/medium/hard/expert). (3) Number range parser (e.g. '1-100'). (4) Allow-negatives toggle for subtraction. (5) Seeded RNG for reproducible worksheets. (6) Per-operation answer calculator. (7) Mixed mode (random op per problem). (8) Problem validator (no div-by-zero, no unwanted negatives). (9) Text worksheet renderer (problems + answers). (10) HTML worksheet renderer (printable, 2-column). (11) CSV renderer (problem, answer). (12) Markdown renderer with spoiler answers. (13) Copy + multi-download (.txt/.html/.csv/.md). (14) History (localStorage, last 20). (15) Shareable URL (settings + seed in hash). (16) Summary stats (by operation, by difficulty). (17) Timed-mode preset (suggests time limit per difficulty). (18) Fisher-Yates problem shuffler.
Is my data sent anywhere?
No. All problem generation runs locally. Your history and settings never leave your browser. History is stored in localStorage on this device only.
Related tools
Chemistry Formula Calculator
Calculate molar mass, empirical & molecular formulas, balance chemical equations, and percent composition. Built-in 118-element periodic table with atomic masses. Formula parser handles parentheses and hydrates (CuSO4·5H2O). Equation balancer uses brute-force integer search. 100% client-side — 18 extra features including CSV/text export, history, shareable URL, presets, isotope selector.
Citation Generator
Generate academic citations in APA, MLA, Chicago, and Harvard styles for books, journals, websites, newspapers, magazines, conference papers, and theses. Author formatter, multiple-author handler with et al., title formatter, year placement, page range, URL + accessed date, in-text citations, DOI validator, bibliography sorter, text/HTML/Markdown/CSV export, history (localStorage), shareable URL. 100% client-side.
Flashcard Maker & Study Mode
Create flashcards from term/definition pairs and study them with flip animation, shuffle, sequential and simplified SM-2 spaced-repetition modes. Multi-format parser (pipe, comma, tab, JSON), deck validator, Fisher-Yates shuffler, mark known/unknown, session + summary stats, CSV/JSON/TXT export, history (localStorage), shareable URL, card search filter, reverse mode, per-card tags, per-card difficulty, and 4 deck presets (Spanish vocab, US states, multiplication tables, periodic table). 100% client-side — no network.