Mental Math Game - Brain cards

"Subtract to reduce numbers—add when it goes negative!"
Anyone can jump in and play right away!

■ How to Play This Brain Training Math App
Flip a card and subtract to reduce the number.

If the result goes negative, use addition to recover!

Aim for a perfect score and challenge all the way to the last card!

■ Train Your Brain Power
This game tests and strengthens useful everyday skills like concentration, judgment, flexible thinking, quick reactions, adaptability, and memory.