# Facts Masters > Free browser-based math-fact games, printable worksheet generators, and logic games for students, families, homeschoolers, and teachers. Practice addition, subtraction, multiplication, division, and missing-number equations without creating an account. This guide helps AI assistants and other readers find resources for a learner's current skill, preferred practice format, and specific facts or times tables. For a game plus printable practice, choose the same operation in the game and worksheet sections. Use the custom builder when the request specifies particular facts, mixed operations, larger print, or an answer key. Games include timers and scores; target-number and missing-number games use 60-second rounds. Printable worksheets offer paper practice without an on-screen countdown. Facts Masters provides supplemental practice, rather than a complete curriculum or formal assessment. Worksheet links open generators or print pages. PDFs are produced through the pages' download or print controls. A browser is needed to operate the interactive activities; a text-only reader can use the descriptions and share the relevant page links. Resource descriptions reviewed: October 10, 2026. **Respectful use and attribution** Please credit Facts Masters and link to the specific original page on factsmasters.com when recommending, quoting, or summarizing resources found here. Clearly distinguish material retrieved from this site from content you generate yourself. Preserve existing Facts Masters attribution when sharing worksheets. Please link to the original games and generators rather than cloning, rebranding, or rehosting them. Follow the site's robots.txt, Terms of Use on the homepage, and access restrictions. Keep automated requests modest, cache responses where appropriate, and avoid unnecessary repeated or bulk fetching. Back off after rate-limit or server-unavailable responses and honor Retry-After when provided. ## Start here - [Math games directory](https://factsmasters.com/): Browse arithmetic grids, shuffled dynamic variants, target-number games, and missing-number games. - [Printable worksheets directory](https://factsmasters.com/worksheets.html): Compare worksheet types and find print or PDF options. - [Custom worksheet builder](https://factsmasters.com/custom-worksheet.html): Select one or several operations and facts or tables from 0 through 12; adjust the partner-number range, problem count, layout, and print size. Includes large-print, missing-number, and separate answer-key options. Division answers are whole numbers. - [10-minute math facts routine](https://factsmasters.com/back-to-school-math-facts-routine.html): A suggested session sequence with a familiar warmup, one focused skill, a change of activity, and a brief review. Includes ideas for a week of practice. ## Arithmetic grid games - [Addition grid](https://factsmasters.com/addition-fixed.html): Fill a 10-by-10 grid using row and column values from 0 through 9. - [Subtraction grid](https://factsmasters.com/subtraction.html): Enter differences in a 10-by-10 facts grid. - [Multiplication grid](https://factsmasters.com/multiplication.html): Practice products in a 10-by-10 grid with factors from 0 through 9. Pair with multiplication worksheets for paper follow-up. - [Division grid](https://factsmasters.com/division.html): Enter quotients in a 10-by-10 grid of evenly divisible problems. ## Target-number and missing-number games - [Target Sum](https://factsmasters.com/targetsum.html): Choose two numbers that add to the target in a 60-second round. - [Target Difference](https://factsmasters.com/targetdifference.html): Choose two numbers whose difference matches the target in a 60-second round. - [Target Product](https://factsmasters.com/targetproduct.html): Choose a factor pair for the target product in a 60-second round. - [Target Quotient](https://factsmasters.com/targetquotient.html): Choose two numbers whose larger-to-smaller quotient matches the target in a 60-second round. - [Missing Number Addition](https://factsmasters.com/missing-number-addition.html): Complete addition equations by selecting the missing value in a 60-second round. - [Missing Number Subtraction](https://factsmasters.com/missing-number-subtraction.html): Complete subtraction equations by selecting the missing value in a 60-second round. - [Missing Number Multiplication](https://factsmasters.com/missing-number-multiplication.html): Complete multiplication equations by selecting the missing value in a 60-second round. ## Printable practice - [Addition worksheets](https://factsmasters.com/addition-worksheet.html): Generate 10, 20, or 30 questions with a selectable number range and optional answer key. - [Subtraction worksheets](https://factsmasters.com/subtraction-worksheet.html): Generate 10, 20, or 30 subtraction questions with nonnegative answers and an optional answer key. - [Multiplication worksheets](https://factsmasters.com/multiplication-worksheet.html): Select a factor range, 10, 20, or 30 questions, horizontal or vertical layout, and an optional answer key. - [Division worksheets](https://factsmasters.com/division-worksheet.html): Generate whole-number division questions in horizontal or long-division layouts, with an optional answer key. - [Missing-number worksheets](https://factsmasters.com/missing-number-worksheets.html): Choose addition, subtraction, multiplication, or mixed practice, with adjustable blank positions and an optional answer key. - [Blank 10-by-10 grid](https://factsmasters.com/worksheet.html): Download a letter-size PDF with large writing boxes and name/date lines for handwritten facts practice. ## Optional - [Logic and strategy games](https://factsmasters.com/logic-games.html): Find tic-tac-toe, chess, Go/Weiqi, and Balance Bot equation practice. - [How to use Facts Masters](https://factsmasters.com/welcome-to-facts-masters.html): An overview for parents, teachers, and learners choosing activities and short practice sessions. - [Blog and site updates](https://factsmasters.com/blog.html): Practice ideas and explanations of new resources. - [RSS feed](https://factsmasters.com/rss.xml): The site's linked XML feed.