You might already know 5 + 5 is equal to 10.
But in this test we only answer the last digit which is 0.
Easy, right?
Let's make you comfy first.
Tune this numpad to your preferences with the settings below.
Make sure all the numpads and questions are visible without scrolling.
There will be no time-limit.
If you're done you can hit the "STOP" button on bottom of the page.
DISCLAIMER: This test is inspired (but not based) from Kraepelin-Pauli test, hence the result should not reflect any real test.
Test Time
Empirical Rule (68-95-99.7)
This is just a wild guess, but it seems that you're a consistent person.
Based on regression analysis on your average calculation time, your endurance is changing overtime and showing an increasing or a decreasing performance.
This result shows your performance when the left numbers is changing.
This result shows your performance when the right numbers is changing.