Working Memory - Mental Calculation
You will hear short arithmetic word problems spoken aloud. Solve each problem mentally.
Do not use paper, a calculator, or another device. Enter only the numeric answer.
Each item has a 30-second limit. You may repeat the question once if the audio was not clear.
The session uses 22 randomized items selected from easy through semi-hard tiers.
Items are ordered from easier to harder, but the exact questions vary by session.
This is a WAIS-inspired practice/norming task, not an official WAIS administration.
Turn your volume on. Question text is hidden during normal testing to preserve the working-memory load.
Item of
Press Start when you are ready to hear the problem.
Item of
Numeric answer only. Decimals are allowed when needed.
| Metric | Value |
|---|---|
| Items | 22 randomized mental arithmetic items |
| Scoring | 1 point for each exact numeric answer |
| Time limit | 30 seconds per item |
| Item norms | Public item-level WAIS norms were not available; this app records item ID, timing, repeats, and correctness for local norm building. |
Public references confirm WAIS-IV Arithmetic is a 22-item Working Memory subtest with raw scores from 0 to 22 and timed item administration. Official item content and age norms are proprietary, so the estimate above is only a draft baseline until enough app data is collected.
Submit your results anonymously to help build item-level norms. No personally identifiable information is collected.