Raindrops: mental math

Practice mental arithmetic by solving problems on falling drops. This activity gives repeated practice in calculation, attention, reaction time, and confidence.

How to practice:

• Drops fall from the top of the screen with arithmetic problems.
• Calculate the answer and type it before the drop reaches the water. You can also use the on-screen keyboard.
• Choose Addition and subtraction or All operations in Settings. All operations includes multiplication and division.

Use short, regular sessions to practice. Start a new session, track your best result, and watch your progress. The questions become harder as you solve more problems.