(1) Knowing the current period number and base number, find the growth number: growth number = current period number? Base period quantity
In recent years, the newly registered market entities in a province have maintained a rapid growth momentum. Various market entities in the province have grown from 7,759,500 in 2065,438+05 to 65,438+046,438+03 in 2065,438+08. In 20 18, there were 2,297,400 newly registered market entities in the province, with an average daily registered market entity of 6,294, an increase of 17.82%. Q From 20 15 to 20 18, the number of real market players in A province increased by about () ten thousand. A.170.2b.270.2c.370.2d.470.2 According to the increase of () households in the stem of the question, it can be determined that the test site of this question is to increase. According to the positioning of various market players in the first row of raw materials, we can know that there were 7,759,500 households in 20 15 and 20 18. It can be seen that the current quantity and cardinality are given in order to find the growth quantity. Display growth amount = current amount? The base period is available, and the increase amount is = 15438+046+03? 775.95=307. 18? 307.2 Therefore, option C is correct.
(2) Given the current quantity and growth rate, find the growth quantity: growth quantity =
In 20 16, patent applications were accepted 1 19937, an increase of 19.9% over the previous year, among which 54339 invention patent applications were accepted, an increase of 15.7%. The number of patents granted in the whole year was 64,230, up by 5.9%, of which the number of invention patents was 20,086, up by 14. 1%. The annual number of PCT international patents accepted was 1560, an increase of 47.2% over the previous year. By the end of the year, there were 85,049 valid invention patents in the city. Compared with 20 15 (), how many tens of thousands of patent applications were accepted in s city in 20 16? A.2.0b.1.8c.1.6d.1.4 According to the number of tens of thousands of pieces added in the stem, it can be determined that the test point of this question is to seek growth. According to 20 16, according to the first row of raw materials, the total number of patent applications in S city in 20 16 years is given, that is,19937 is the current number, which is an increase of 19.9% over the previous year, that is, the calculation formula is determined as the increase amount =, and the data is brought in. In the calculation process, we will find that 2 (ten thousand pieces), so option A is correct. In the calculation of this question, we have a quick calculation skill, which is the principle of (n+ 1). What does this mean? We can learn together, that is, convert the percentage form of growth rate into the fractional form, that is, when the growth rate is =, our tabular form can be converted into the growth amount to simplify the calculation. This method can kill the question in the course of the exam, and you can do another question with the conclusion just now.
In 20 18, the total energy consumption was 4.64 billion tons of standard coal, an increase of 3.3% over the previous year. Among them, coal consumption increased by 1.0%, crude oil consumption increased by 6.5%, natural gas consumption increased by 17.7%, and electricity consumption increased by 8.5%. Coal consumption accounted for 59.0% of the total energy consumption, down 65,438 0.4 percentage points from the previous year; The consumption of clean energy such as natural gas, hydropower, nuclear power and wind power accounted for 22. 1% of the total energy consumption, up by 1.3 percentage points. Q: How many tons of standard coal did China's total energy consumption increase in 20 18? A.0.9 b.1.5 c.2.1d.2.5. From the year-on-year growth of hundreds of millions of standard coal, it can be determined that the test point of this question is to seek growth. According to 20 18, the total energy consumption of the whole country is located in the first row of raw materials, which shows that given the growth amount and growth rate, we can get the growth amount =? 3.3%, because 3.3%? According to the principle of (n+ 1), the increase that can be brought into simplified calculation is =, so option B is correct. We can use this principle (n+ 1) to solve the problem when calculating the growth, but we need to remember that the percentage we often use when preparing for the exam is to convert the corresponding value of the component. This percentage is converted into a fraction. Let's study next time, and that's all for today.