Reasoned Mathematics For Quick Mental Calculation

Mathematics has always accompanied man in his life, and accompanies him even more so today, not only every time an arithmetic calculation is needed, but also in consideration of the manifestations of the surrounding nature, which often use well-defined mathematical schemes to form and develop.Quick mental calculation algorithms are useful tools to simplify some calculations using "mathematical tricks," "shortcuts," which are based both on simple reasoning and application of basic properties of arithmetic, and on more or less complex methodologies to speed up the execution of the calculations avoiding being forced to execute them on sheets of paper.By way of example, calculating the square of the number 63 in mind can be quite easy by simply calculating the square of 60 and summing the fixed number 9 and six times the number 60, i.e. simply calculating the sum 3600+360+9, obtaining, in this way, the result 3969. Nothing, therefore, that cannot be calculated quickly in mind, even without a particular mental training.Another typical, very significant example is the fast mental calculation of the square of the numbers ending in the number 5, such as the number 85; well, the result will be simply equal to the concatenation of the multiplication between the number that precedes the number 5 and its following number and the fixed number 25, that is it will be equal to 8x9 concatenated with 25, that is equal to 7225.This small guide deals with cases such as those just exposed and aims to provide the reader with many simple and detailed examples of application of quick mental calculations, focusing attention, in particular, on the squares of numbers and on the multiplication of numbers. Along with mental training techniques, you can thus have an extra gear that, if nothing else, is a starting point to get closer to the magnificent world of mathematics starting from useful and partly fun concepts of simple understanding.In this situation, Vedic math, of which one often hears about, is very useful for making very fast multiplications, in mind, between particular numbers and it is for this reason that, sometimes, maybe a little improperly, one talks about the magic of mathematics or mental tricks for calculation.

• | Author: Manuel Carsini
• | Publisher: Independently Published
• | Publication Date: Dec 27, 2018
• | Number of Pages: 56 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1792757336
• | ISBN-13: 9781792757334