Description

Test your Subtraction speed! Compete for the highest score or use the practice mode learn your Subtraction facts.
Features:
3 Skill Levels. (Easy is designed for grades 1 - 2, Medium is designed for grades 2 -3, Hard is designed for any student who wants a challenge.
Timer that adjusts time based on chosen difficulty.
Practice Mode to learn your facts with adjustable number size.

What's New in Version 2.0

High Score Function
Improved Interface
Animation