In the world of the 21st century, despite the existence of calculators on smartphones and computers, you need to be confident with numbers. A few mental arithmetic calculations are often the key to being able to follow an argument. If you struggle when it comes to calculations, the overall quality of your thinking may be compromised, and this can have an impact on your performance at work, job interviews, university, and even your social life.

All you need is a little practice to sharpen your mind in mathematics and play with numbers at your fingertips.

The book "Numerical Thinking" offers 50 brain exercises to think accurately.

If you think numerically:
- You will have confidence with numbers.
- You will quickly improve your numerical abilities.
- You will make numerical calculations in any situation.

As your skills in numerical thinking improve, you will see that you become better and more confident in managing numbers. Numerical thinking also helps improve your speed and accuracy.