Training Engine
Addition
Swift two-digit addition practice. Adaptive complexity based on your speed.
High Score: 0
100's Complement
Find the number that sums to 100. Essential for subtraction speed.
High Score: 0
Date Guessing
Guess the day of the week for dates between 1980 and 2010. Master calendar mental math with odd-day clues.
High Score: 0
Swift Addition Training Engine v1.5.2