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:
451 points - Petra
230 points - Gavin
219 points - Levi
Medium
Best result:
41 points - Max
33 points - Chip
31 points - Marcel Munsch
Hard
Best result:
30 points - Jelle
18 points - Federico
14 points - Ehan
Estimation
Best result:
34 points - DER UNTER MIR STINKIT
33 points - Federico
32 points - Pauli

Subtraction

Easy
Best result:
300 points - Jorge
152 points - Jonathan
94 points - Tyra
Medium
Best result:
48 points - Max
35 points - Tim
32 points - Adri
Hard
Best result:
36 points - Jelle
16 points - Anna
15 points - Federico
Estimation
Best result:
19 points - Federico
15 points - Marc
12 points - DER UNTER MIR STINKIT

Multiplication

Easy
Best result:
561 points - Sophie
220 points - Attila
208 points - Siviwe
Medium
Best result:
103 points - Max
78 points - Edward
51 points - Adri
Hard
Best result:
65 points - Phuc
20 points - Jelle
16 points - Francesco
Estimation
Best result:
33 points - Federico
17 points - piet
13 points - Marc

Division

Easy
Best result:
470 points - Iara
253 points - Lennard
218 points - Ant
Medium
Best result:
110 points - Max
69 points - Adri
59 points - Edward
Hard
Best result:
6 points - Federico
5 points - Daniel
4 points - Coralie
Estimation
Best result:
17 points - Lisa
17 points - Federico
11 points - Marc

Percent

Easy
Best result:
126 points - Connor
92 points - Jesper
77 points - Anna
Medium
Best result:
125 points - Max
85 points - Jesper
80 points - Chip
Hard
Best result:
115 points - Amine
104 points - Yuxiang
63 points - Gavin
Estimation
Best result:
21 points - Adi
18 points - Marc Marlon
14 points - Marc

Random

Easy
Best result:
977 points - MJK
359 points - Aravinth
193 points - Jonathan
Medium
Best result:
1000 points - Ian
248 points - Samrudhi
104 points - Max
Hard
Best result:
49 points - Phuc
14 points - Presiyana
13 points - Alex
Estimation
Best result:
60 points - Samrudhi
15 points - MJK
14 points - Brett
Random - Method and Difficulty
Best Result:
14 points - Martina
11 points - Moritz
10 points - Timo Krall
Do your mental math skills need a little update?
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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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