First of all, the complex problem of the average score of Olympic numbers.
1. If the average age of three people is 22, and none of them is younger than 18, how old is the oldest person?
2. The average score of statistical mathematics test in a class is 85.23. After review, it was found that Chen Qiang's score of 96 was wrongly calculated as 69. After recalculation, the average score of this class is 85.77. How many students are there in this class?
The average score of Zhang Ming's first five math exams was 88. In order to make the average score reach 92.5, how many times does Zhang Ming have to get full marks in a row?
4. There are 52 students in Class 5 (1) and 48 students in Class 2. In the math exam, the average score of all students in the two classes is 78. (2) The average score of class is 5 points higher than that of class (1). What is the average score of the two classes?
Second, the introduction of the Olympic Games.
Olympic math is an Olympic math competition, and Olympic math questions are Olympic games questions. The Olympiad originated from the middle school students' mathematics competitions held by the former Soviet Union in Leningrad and Moscow at the beginning of last century, and was named Mathematical Olympics. It was not until 1959 that the first international Olympic Mathematics Competition was held in Bucharest that the Olympics really entered the world stage.
The essence and learning methods of Olympic mathematics;
1, the essence of Olympic mathematics.
The essence of the Olympic Mathematical Competition is to discover, cultivate and select people with outstanding talents in mathematics, thus promoting the development of mathematical science to a higher field.
Olympiad is to use mathematical models to study and explore the laws and mysteries of nature. It is a mathematical scientific research that integrates theory, calculation, graph theory, logical reasoning, thinking ability and imagination.
2, the learning method of Olympic mathematics.
We must pay attention to the cultivation of children's interest in mathematics and the cultivation of mathematical thinking ability. By studying the Olympic Mathematics, children can find pleasure in learning mathematics, and discover and learn how to solve some simple problems in real life through the idea of mathematical modeling.
By studying Olympic Mathematics, we can learn how to split problems, how to build a way of thinking to solve problems, and how to find solutions to problems.