1, look: it's a serious logarithm. All the questions have been copied wrong. How can the result be correct? Therefore, students are required to check with the original questions or previous formulas in time when copying questions and calculating in each step to avoid copying wrong numbers or operation symbols. To do three things: ① check with the original question after copying the question; (2) Check the vertical figures with the horizontal figures; ③ Check the horizontal figures with the vertical figures.

2. Thinking: It refers to carefully examining the problem. When instructing students to do calculations, don't start with a pen. They must first examine the problem, first figure out what the problem should be, then what it is, and whether there is a simple calculation method before they can start writing. In addition, the calculation should be accurate first and fast second.

3. Calculation: refers to careful writing and calculation. Homework and exercises should be written neatly and in a standardized format. The writing of numbers, decimal points and operation symbols in the topic should especially conform to the specifications. There should be an appropriate interval between the numbers, and the vertical form on the draft should be aligned and clear. Pay attention when calculating, don't worry, don't grab.

4, inspection: it is necessary to calculate carefully. After calculation, first check whether the calculation method is reasonable; Secondly, check whether numbers and symbols will be copied wrong and whether decimal points will be misspelled or omitted; Third, every number obtained in the calculation process and the final result should be checked and calculated. Therefore, cultivating good study habits is an important way to prevent calculation errors and improve calculation ability.