Schulte Table: Find 1 to 25 Against the Clock

Schulte tables are a classic attention and visual-search exercise. The intended technique is to fix your gaze on the middle square and find the numbers using peripheral vision rather than scanning with your eyes.

Times under 30 seconds are quick. If you hunt square by square you'll be slower but you'll still finish — the difference between the two methods is usually dramatic once you practise the centred version.