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.

Addition

Easy
Best result:
346 points - Iliana
341 points - Petra
232 points - Nikita Zubach
Medium
Best result:
31 points - Antoinette
29 points - Iliana
29 points - Nikita Zubach
Hard
Best result:
36 points - Jelle
19 points - Antoinette
16 points - Florian
Estimation
Best result:
49 points - Duncan
43 points - Antoinette
35 points - Andreas

Subtraction

Easy
Best result:
381 points - Iliana
205 points - Marissa
188 points - Stefan
Medium
Best result:
39 points - Theresa
36 points - Adri
32 points - Florian
Hard
Best result:
43 points - Jelle
30 points - Theresa
27 points - Florian
Estimation
Best result:
25 points - Lizzie
15 points - Kristian
13 points - Alexandru

Multiplication

Easy
Best result:
735 points - Tyra
705 points - Achileas
525 points - Theresa
Medium
Best result:
90 points - Adri
74 points - Alexandru
47 points - Florian
Hard
Best result:
56 points - Phuc
24 points - Florian
21 points - Jelle
Estimation
Best result:
47 points - Lizzie
41 points - Alexandru
21 points - Steven

Division

Easy
Best result:
1671 points - Carolin
820 points - Florian
450 points - Theresa
Medium
Best result:
109 points - Adri
66 points - Alexandru
54 points - Kris
Hard
Best result:
14 points - Florian
6 points - Colin
3 points - Jim
Estimation
Best result:
27 points - Lizzie
17 points - C
11 points - MC

Percent

Easy
Best result:
1001 points - Florian
343 points - Adonis
336 points - Tyra
Medium
Best result:
504 points - Florian
230 points - Theresa
155 points - Mert
Hard
Best result:
500 points - Theresa
344 points - Florian
268 points - Elif
Estimation
Best result:
28 points - Lizzie
18 points - Florian
12 points - Phil

Random

Easy
Best result:
1100 points - Anna
368 points - Clemens Finke
311 points - Diana
Medium
Best result:
191 points - Ian
87 points - DE
83 points - James
Hard
Best result:
40 points - Phuc
14 points - Giorgio
13 points - Michael
Estimation
Best result:
18 points - Brett
15 points - MC
10 points - Florian
Random - Method and Difficulty
Best Result:
14 points - Jonas
10 points - Harrshit M
6 points - Helena
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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