Welcome to HEX your Brain!
Addition in base 16 speed test.
Task and answers in base 16.
Letters abcdef should be in lower case.
Choose level by typing
Number from 1 to 9
Type 'q' to stop.
Get ready
Tips&hints:
- Theoretical basics wiki
- Time measurement is in milliseconds;
- Level you choose corresponds to digit count of the numbers to sum up;