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.
All
Case Interview Basics
Case Library
Tests & Guides
Mental Math Tool
Stress Questions
Drills
Brainteaser

Addition

Easy
Best result:
117 points - Petra
74 points - Indiana
60 points - Luc
To the test
Medium
Best result:
35 points - Max
27 points - Mia
21 points - Julius
To the test
Hard
Best result:
11 points - Mia
10 points - Hannes
8 points - Fleur
To the test
Estimation
Best result:
13 points - Simon
12 points - vincenzo
3 points - Lilli
To the test

Subtraction

Easy
Best result:
53 points - ijbkn
46 points - Eva
38 points - Максим
To the test
Medium
Best result:
39 points - Max
30 points - Chip
23 points - Julius
To the test
Hard
Best result:
9 points - Fleur
To the test
Estimation
Best result:
0 points
To the test

Multiplication

Easy
Best result:
237 points - Ilmari
128 points - selena
98 points - William
To the test
Medium
Best result:
111 points - Max
34 points - Julius
31 points - Nelly
To the test
Hard
Best result:
36 points - Phuc
2 points - Marcio
1 point - Fleur
To the test
Estimation
Best result:
0 points
To the test

Division

Easy
Best result:
600 points - William
79 points - Jeffrey
77 points - Franziska
To the test
Medium
Best result:
27 points - Julius
26 points - Chip
18 points - Nelly
To the test
Hard
Best result:
12 points - Jelle
To the test
Estimation
Best result:
6 points - Saim
To the test

Percent

Easy
Best result:
163 points - Bijan
31 points - Franziska
30 points - Nicolas
To the test
Medium
Best result:
104 points - Julius
82 points - Nelly
45 points - Nico
To the test
Hard
Best result:
89 points - Bijan
85 points - Chip
To the test
Estimation
Best result:
8 points - vincenzo
To the test

Random

Easy
Best result:
233 points - Clemens F
70 points - Sophie
64 points - Atulya
To the test
Medium
Best result:
79 points - Yulia
79 points - Max
44 points - Francesco
To the test
Hard
Best result:
8 points - Michael
8 points - Brett
6 points - Lukas
To the test
Estimation
Best result:
17 points - Iris
14 points - Brett
3 points - Saim
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.

Questions or Feedback?
Select category
  • Select category
  • Case Interview Preparation
  • Coaching
  • Technical Problems
  • Other
Your name
Your email address
Cancel