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Authoritative PPT Summary
"Application of Percents (4)" PPT
Part One: Learning Objectives
1. Understand the basic knowledge about savings in life and be able to use formulas to calculate interest.
2. Be able to use the relevant knowledge of percentages to solve practical problems related to savings, feel the close connection between mathematics and life, and appreciate the application value of mathematics.
3. Experience savings and other activities, learn to manage money rationally, and gradually develop a good habit of not spending money recklessly.
Learning focus: Understand and master the calculation method of interest.
Learning difficulties: Understand the meaning of principal, interest rate and interest.
Learning method: Let students master the calculation method of interest through observation, thinking, cooperation and communication.
Percent Application PPT, Part 2: Interactive New Teaching
Let’s talk about what annual interest rate is and how to calculate interest?
Principal: It is the initial capital deposited in the bank.
Interest: It is the additional return obtained when the principal is deposited in the bank.
Interest rate: Also known as interest rate, it represents the percentage of interest to principal within a certain period of time.
Annual interest rate: What percentage of the principal is the annual interest.
Interest = principal × interest rate × time
Percent application PPT, the third part: Consolidation and expansion
1. Naughty deposited 800 yuan in the bank on October 1st of the year before last, for two years, with an annual interest rate of 2.79%. How much interest should Naughty receive upon maturity?
800×2.79%×2
=800×0.0279×2
＝44.64 (yuan)
Answer: The interest due after maturity is 44.64 yuan.
2. Uncle Li purchased a five-year national construction bond worth 20,000 yuan, with an annual interest rate of 3.81%. How much interest will Uncle Li receive at maturity?
20000×3.81%×5
=20000×0.0381×5
＝3810 (yuan)
Answer: The interest that Uncle Li should receive is 3810 yuan.
3. The following is the information about Aunt Zhang’s purchase of a treasury bond. When this treasury bond matures, how much yuan will she receive in total in principal and interest?
5000×3.39%×3+5000
=5000×0.0339×3+5000
＝5508.5 (yuan)
Answer: The total principal and interest available is 5508.5 yuan.
Application of percentages PPT, part 4 content: Class summary
Principal: The money deposited in the bank is called principal.
Interest: When withdrawing money, the extra money paid by the bank is called interest.
Interest rate: The ratio of interest to principal is called interest rate.
Interest = principal × interest rate × time
Keywords: Beijing Normal University edition sixth grade mathematics PPT courseware free download, application of percentages PPT download, .PPT format;
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"Application of Percents (4)" PPT download:
"Application of Percents (4)" PPT download Part 1: Objectives of this section 1. Be able to use the meaning of percentages to list equations to solve practical problems, and understand the close connection between percentages and real life. 2. Further cultivate the habit of checking and interpreting problem-solving results.
"Application of Percents (3)" PPT download:
"Application of Percents (3)" PPT Download Part One Content: Situation introduction. The total food expenditure of the Xiaoxiao family in 2000 accounted for 55% of the total household expenditure, and the total other expenditures accounted for 45% of the total household expenditure. What mathematics can you read from this? information? ... ... ...Percentage..
"Application of Percents (3)" PPT:
"Application of Percents (3)" PPT Part One Content: Learning Objectives 1. Guide students to further understand the application of percentages in life, deepen their understanding of the connotation of percentages, and master the problem-solving ideas for solving percentage application problems by formulating equations. 2. Improve the use of mathematical solutions...