In the 21st-century world, despite the presence of calculators on smartphones and computers, you must be able to feel confident with numbers. A few mental arithmetic calculations are often the key to being able to follow an argument.

If you feel overwhelmed when it comes to making calculations, the overall quality of your thinking may be at stake and this can impact your performance at work, in job interviews, at university, and even in your social life. All you need is a little practice to clear your mind of mathematics and to have numbers at your fingertips.

The book "Arithmetic Thinking" offers 50 mind puzzles to practice thinking accurately.

If you think numerically:

• You will gain confidence with numbers.
• You will quickly perfect your arithmetic skills.
• You will make numerical calculations in every situation.

As your new skills in arithmetic thinking improve, you will see that you become better and more confident in handling numbers. Arithmetic thinking also helps improve your speed and accuracy.