Time
30s
Correct
0
Accuracy
—
Answer as many quick questions as you can in 30 seconds — four answer choices, wrong answers count against your accuracy. A simple mental speed test of how fast you retrieve and act on information.
Time
Correct
Accuracy
Answer as many quick questions as you can in 30 seconds — four answer choices, wrong answers count against your accuracy. A simple mental speed test of how fast you retrieve and act on information.
This processing speed test is a timed mental arithmetic challenge: solve addition, subtraction and multiplication questions, then choose from four answers. For example, if the question is 7 × 8, choose 56. It is a specific calculation-and-response task, not a measurement of your brain’s overall speed.
Press Start to begin the 30-second round. Each answer brings up another question. A correct answer adds one to your score; a wrong answer counts as a mistake but does not subtract a point. Accuracy is correct answers divided by all answers you attempted, shown as a percentage.
For example, 12 correct answers and three mistakes give a score of 12 and 80% accuracy. Read the two numbers together: answering more questions is not necessarily more useful if you are also making more errors. The result reflects arithmetic familiarity, choosing an answer and using your device as well as pace.
Use the same device and input method, minimise interruptions and compare several runs rather than one personal best. Questions are randomly generated, so different rounds are not identical. Altamens has not established population norms or a reliable-change threshold for this test; its game labels are not clinical percentiles or IQ scores.
For another timed calculation game, try Bubble Rush →
For more ways to practise pace and accuracy, explore our processing speed exercises →
Cognitive training exercises to improve focus
Every skill comes with a free test: get your baseline in under a minute, then retest weekly to track your progress. Scores are saved to your profile so you can watch them move as you train.
Calculate equations and make split-second pathing adjustments as the screen scrolls.
Track in the game: Your speed and accuracy while solving equations and choosing a path.
Hold numbers in short-term memory while physically navigating winding turns.
Track in the game: How consistently you hold and use the task information during a round.
Trace a dynamic, shrinking path without drifting or lifting your finger.
Track in the game: Your response timing and path accuracy during repeated rounds.
Common questions
It counts correct arithmetic answers in a 30-second round and also reports accuracy. Calculation, reading the choices and selecting an answer all contribute. It does not isolate a single general brain-speed ability.
They do not subtract points from your correct-answer count. They do lower your accuracy percentage, and the time spent answering them leaves less time for other questions.
There is no validated population benchmark for this version. Compare your own correct-answer count and accuracy under similar conditions, while remembering that question sets change. A single higher score does not establish a lasting improvement.
No. It is a free, informal arithmetic exercise for personal practice and tracking. It cannot diagnose a condition, estimate IQ or replace a standardised assessment.