Exact!
How to play: choose 6 numbers, tapping Big (25, 50, 75, 100) or Small (1 to 10) for each, or pick how many big ones in one go. A target from 101 to 999 appears and the clock starts. Tap a number, then + β Γ Γ·, then a second number: the two become one new number. Use each starting number at most once. Only whole, positive numbers are allowed (no fractions, no negatives). Make the target exactly for 10 points, get within 5 for 7, within 10 for 5. Hint shows the first step of the computer's answer and halves your points. Keys: 1 to 6 pick a number, + β * / pick an operation, Backspace undoes, Enter declares. In settings: time, number pool (UK TV or my Excel sheet's pool), and whether the target is always solvable.