General General
Consulting Finance
Consulting Finance

Get Your Mental Math Skills up to Speed

Learn the case interview basics, practice with 200+ cases, and benefit from extensive test materials, and interactive self-study tools.
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Mental Math Tool
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Brainteaser

Addition

Easy
Best result:
22 points - Siviwe
21 points - serene
17 points - Luis
To the test
Medium
Best result:
0 points
To the test
Hard
Best result:
0 points
To the test
Estimation
Best result:
0 points
To the test

Subtraction

Easy
Best result:
17 points - Siviwe
12 points - Yasmine
To the test
Medium
Best result:
0 points
To the test
Hard
Best result:
0 points
To the test
Estimation
Best result:
0 points
To the test

Multiplication

Easy
Best result:
239 points - Siviwe
29 points - Yasmine
To the test
Medium
Best result:
0 points
To the test
Hard
Best result:
0 points
To the test
Estimation
Best result:
0 points
To the test

Division

Easy
Best result:
37 points - Siviwe
11 points - Yasmine
To the test
Medium
Best result:
0 points
To the test
Hard
Best result:
0 points
To the test
Estimation
Best result:
0 points
To the test

Percent

Easy
Best result:
0 points
To the test
Medium
Best result:
0 points
To the test
Hard
Best result:
0 points
To the test
Estimation
Best result:
0 points
To the test

Random

Easy
Best result:
77 points - Aravinth
21 points - Yasmine
To the test
Medium
Best result:
62 points - F
2 points - Mitch
To the test
Hard
Best result:
0 points
To the test
Estimation
Best result:
0 points
To the test
Random - Method and Difficulty
Best Result:
0 points
To the test
Do your mental math skills need a little update?
Sign up now for free and practice with our Mental Math Tool.

Practice Your Mental Math Skills for Free

Fast and accurate mental math is a necessary skill for many job interviews and also for your job. Therefore, it’s important to dedicate regular time to training your math skills. Discover more about why strong math abilities are essential in our article on the fundamentals of fast math.

How the Mental Math Tool Works

Choose one of the 24 tests above to assess and improve your math skills for free. You can take a test as many times as you like and track your improvement over time. See how you perform compared to other candidates. The top 3 rankings are recalculated monthly, giving you the chance to climb the leaderboard each month. All other metrics, including your average, the overall user average, and your best results, are cumulative.

Mental Math Practice – Train Your Math Skills for Your Interview

Use our interactive and user-friendly mental math tool to train your interview math skills in all basic operations (e.g., addition, multiplication, percentages). By comparing your performance to the overall PrepLounge community, you can enhance your math skills and ensure you are well-prepared for any calculations during your interview.

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