Starting with this article begins a series of articles designed to collect check and translate all the material to acquire the skills of mental calculation in all possible ways. We started by two excerpts from the Wikipedia main article in Spanish to the concept of Mental Calculation:
''The calculation is realizarcálculos mental math using only the brain, without aid of other instruments such as calculators or pencil and paper. Some calculators can perform complex mathematical operations (such as products of numbers of 4 or more digits) using mental math. However, the best mathematicians often do not match the best estimates. The practice of mental calculation helps the student put into play different strategies. Mathematical activity is the most simple and the least used in the classroom. Its benefits include: development of number sense and intellectual abilities such as attention and concentration, plus a taste for mathematics. For his teaching is advisable to allow the discovery of rules and strategy selection. Here are some ways to train mental calculation.''
With the above definition we are left with three important things, practices, strategies and rules;be discussed here step by step to be memorized and put into practice. The second excerpt comes to be so;
''In general, the mental calculation is to model the numbers of the most convenient way to perform prescribed operations.''
And here comes the conclusion that the most suitable form other than the learned strategies are also the same one developed for convenience and organization.
Now in principle, the article I will try to be sorted by subject and complexity, but find new ways forward chasms include them but out of order so will have to be guided by the tags and classifications.
In the next article, SUMS
Regards.
