Number Memory

How to play Number Memory

1. Remember a growing string of digits, then type it from memory.
2. Read the prompt carefully and choose an answer, or type into the answer field.
3. After checking, read the explanation. Use “Next round” to continue.
4. Complete ten rounds for a score out of 100. Restart creates a fresh session.

A worked example

Recall exactly what you saw. 5 6 9

After studying and hiding the prompt, the answer is 569. Read in small groups, then recall without looking.

Recall the original digit order

Read the digits from left to right, then type the same string after it disappears. A missing digit, transposition or extra digit changes the answer. This task uses exact recall; the reverse-span activity adds a separate reversal rule.

Try recalling the digits backward

A useful way to practice

Group information into small meaningful units. On another day, compare sessions using the same game and similar conditions. A practiced strategy can improve this task without changing every aspect of memory.

What your result means

This is a recreational memory activity. Results describe performance on this particular task, with this device and these rules. They are not a clinical assessment, IQ score or promise of improvements in daily life. Your best result and recent sessions stay in this browser; no account is required.