A maths game only works if the mathematics is what you do to win. These titles put numbers in the middle of the play: you count, you add, you estimate, and the game responds. They suit short sessions between homework and dinner better than a long sitting, and they are all playable without reading long instructions — useful for younger children and for classrooms where every minute counts.
A maths game is worth playing when the arithmetic is the obstacle, not the decoration. If a child can win by clicking quickly while ignoring the numbers, the game is not teaching anything. In the titles here, the numbers are the thing you manipulate: you count objects, compare quantities, split a pizza into fractions — and the game cannot proceed until the maths is right.
Ten minutes is the right session length for most of these. Long sessions drift into guessing, which is worse than no practice at all, because it rehearses errors. Stop while the child is still getting them right.
If a topic keeps coming up at school, play the matching game the night before the lesson rather than the night after. Familiarity before the explanation makes the classroom version land much better.
Every game here was opened and played before it was added to this list — we check that it loads, that the controls work with a mouse and with a finger, and that nothing inside it asks for personal details. The full standard is on the how we review games page. The list is reviewed periodically; when a game stops working it is removed rather than left broken.
If you are looking for something more specific — a quieter game, a two-player option, or something for a particular age — the collections index has the other lists, and the parents' guide explains how the site handles data and advertising.