Subtraction regroup sprint
60 seconds of column subtraction — borrow fast and keep the streak.
1 Subtraction regroup sprint
60 seconds of column subtraction — borrow fast and keep the streak.
Score0
Streak0
Lives3
Time60
Ready to sprint?
60 seconds. 3 lives. Streaks earn bonus points.
Scores are kept for this session only and reset when you leave the page.