Math Games — Ten Questions, Four Operations, One Timer
Mental arithmetic is a skill that decays without use. Most people last practised it seriously in primary school, and the gap shows up at a restaurant table or a supermarket shelf rather than in an exam. This game is a short, repeatable drill: ten questions a round, drawn at random from addition, subtraction, multiplication and division, with operands between 1 and 12.
Every question is multiple choice with four options, and the wrong options are chosen deliberately rather than randomly. They are the answers you would actually reach by making a real mistake — off by one, off by ten, carrying wrongly, or applying the neighbouring operation. Random distractors would be eliminated on sight and would teach you nothing; near-misses force you to commit to an answer instead of ruling out the obviously silly ones.
The round is timed, but the clock is information rather than pressure. There is no penalty for taking your time and no bonus for rushing. What the timer gives you is a second axis to improve on: most people plateau on accuracy fairly quickly and then spend months getting faster at the same set of facts. Seeing both numbers at the end of every round makes that progress visible.
Division questions are always built backwards from a whole-number answer, so you will never be asked something that does not divide cleanly. Subtraction is ordered so the result is never negative. Repeats are held back within a round, so ten questions means ten different facts rather than the same one coming round twice.
There is no account, no download and no app. The whole game is a few kilobytes of JavaScript running in your own browser, it works offline once the page has loaded, and nothing about your score leaves the device. If you want a narrower drill, the multiplication and times tables versions target those specifically, and there is a gentler addition-and-subtraction set for younger players.
How to play Math Games
- Press "Start round" to generate ten random questions.
- Read the question and tap one of the four answers underneath it.
- The correct answer turns green; if you picked wrong, your choice turns red alongside it.
- The next question appears automatically after a moment — there is nothing to press.
- At the end you get your score, your percentage and your time, plus every question listed with its answer.