First, we should pay enough attention to calculation.
Many students always think that it is much easier to calculate problems than to analyze application problems, and they have a solid understanding of some laws and laws, so calculation is a breeze, so they are either overconfident or inattentive when calculating, and the results are full of mistakes. In fact, it is not easy to calculate correctly. For example, to calculate a simple formula of 37×54 requires multiplication and addition, which can only be completed after four multiplication and four one-digit addition in the table. As for calculating an elementary arithmetic problem of fractions and decimals, it needs dozens of basic calculations and a lot of knowledge such as operation order, operation rules and four operation rules. In this complicated process, a little carelessness will make the calculation of the whole problem wrong. Therefore, the calculation must not be sloppy.
Second, we should follow the general calculation order.
First of all, make clear the meaning of the question and see if there are any special requirements such as simple method and keeping several decimal places; Secondly, observe the characteristics of the topic and see if there are several simple algorithms for operation; Third, determine the operation sequence. On this basis, the relevant rules and laws are used for calculation. Finally, carefully check whether there are any mistakes, omissions or miscalculations.
Third, we should form the good habit of careful calculation.
Some students make mistakes because they are not careful in calculus. The data is unclear and the identification is wrong. When drafting, you can't arrange the vertical tables in a certain order, which leads to the adhesion between the top and bottom, the misalignment of the same numbers, which is not convenient for inspection and easy to read the wrong data. Therefore, we must form the good habit of writing numbers vertically.
Fourth, don't blindly pursue high speed.
Correct and fast calculation is the ideal goal, but it is necessary to know that correct calculation is the premise and the most basic requirement, and high speed without correct foundation is worthless. Therefore, it is better to calculate slowly, in order to ensure the correctness of calculation and improve the accuracy of calculation.