How to calculate the decimal point for the English postgraduate examination.
In the English postgraduate examination, the calculation of the decimal point is a common test point. Mastering how to calculate the decimal point is essential for correctly solving math questions in the English Entrance Examination. This article will introduce in detail the calculation method of the decimal point in the English postgraduate entrance examination to help students better cope with this test point.
1. The basic concept of decimal point.
The decimal point is a symbol used to separate the integer part from the decimal part. In the English postgraduate examination, the decimal point is usually an English full stop"." indicates. The part before the decimal point is the integer part, and the part after the decimal point is the decimal part.
2. The method of calculating the decimal point.
1.Additive operations.
In addition, the decimal point needs to be moved to the same position. The number of digits moved depends on the number of digits in the decimal part. For example, 23 + 3.4 = 5.7. Because the decimal point of both decimal places is in the last place, the decimal point is still in the last place after adding.
2.Subtraction.
In subtraction, the decimal point also needs to be moved to the same position. The number of digits moved depends on the number of digits in the decimal part. For example, 23 - 1.4 = 0.9. Because the decimal point of both decimal places is in the last place, the decimal point is still in the last place after subtraction.
3.Multiplication.
In multiplication, the decimal point needs to be multiplied by the corresponding multiple. For example, 02 5 = 1, because the decimal point of both numbers is in the last place, so the decimal point is still in the last place after multiplication.
4.Division.
In division, the decimal point needs to be divided by the corresponding multiple. For example, 02 รท 5 = 0.04, because the decimal point of both numbers is in the last digit, so the decimal point is still in the last digit after division.
3. Precautions.
1.Pay attention to the position of the decimal point when calculating to ensure that the correct number of moves or digits is moved.
2.Pay attention to the choice of multiples in multiplication or division, and make sure that the corresponding multipliers are multiplied or divided correctly.
3.When performing the four operations, it is necessary to pay attention to the order of operations, first multiply and divide and then add and subtract.
4.When doing the questions, you should pay attention to check whether the calculation results are correct and make sure that you have not made any calculation mistakes.
Through the above introduction, I believe that candidates have mastered the calculation method of decimal points in the English postgraduate examination. Practice your Xi during your preparation to master this skill so that you can do well in the exam.
2024 Postgraduate Entrance Examination