Find every way to make the target from four numbers using + − × ÷ and parentheses.
Target
Enter four numbers (or press Random for 1–13 cards), pick a target (default 24), then Solve to enumerate every expression — using + − × ÷ and parentheses — that evaluates to the target, de-duplicated. Or type your own expression in the box (use the four given numbers each once, with + - * / and parentheses) and press Check to verify it equals the target. Division is exact rational arithmetic, so fractional intermediate steps are allowed.