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500 hand-tuned levels from warm-up to expert — arrange the numbers, pick your operators, hit the target
Building an equation from scratch — rather than recalling a memorised answer — demands mental flexibility and sequential logical reasoning. In NumGrid you assemble your own path from four numbers to a single target, holding several possible routes in mind and testing them before committing. What regular play reliably improves is NumGrid itself: you reach the target in fewer attempts and less time. Whether that carries over to your general ability is far less certain, and we won't promise what we can't deliver.
You are given four numbers and one target number. Tap the numbers and operators in whatever order you like to build an equation that equals the target. All four numbers must be used, every level has at least one guaranteed solution, and there is no limit on attempts.
Early levels use small numbers with addition and subtraction only. Multiplication, division and then brackets unlock gradually, and the number range widens as you advance through all 500 levels to expert difficulty.
Yes — NumGrid is completely free with no subscription. Play instantly as a guest, or sign in to save your score and unlocked levels and sync them across any device.