Digit span
How long can a sequence of numbers get before you lose it? Practise your digit span forwards and backwards – on screen or in pairs with the worksheet. ← All concentration exercises
How it works
Pick a level
Easy: forwards from 3 digits · Medium: forwards from 4, faster · Hard: backwards from 3 digits.
Remember & type
Digits appear one after another, then you type them. Every right sequence gets one digit longer; two mistakes on one length end the round.
Practise in pairs
The worksheet holds sequences of 3 to 9 digits to read out – handy for parents, teachers, therapy and care.
Frequently asked questions
How many digits can you remember?+
Many adults keep about five to nine digits forwards, usually one or two fewer backwards. The digit span is a classic of memory research.
Why backwards?+
Repeating backwards means holding the sequence in mind and turning it round at the same time – that challenges working memory more than simple repetition.
How do I use the worksheet?+
One person reads the sequences out slowly, about one digit per second, the other repeats them. Tick the right ones; stop after two mistakes on one length. For the backwards level the answers are on the solution sheet.
Is this a memory test?+
It is an exercise without norm values. It does not replace a medical or psychological examination.
The exercises are for practice and fun. They do not replace a diagnosis or therapy.