I m going to take the exam and I want to ask what the Olympiad is

Mathematics Olympiad refers to a discipline in mathematics competitions, also known as advanced mathematics, mathematical analysis, etc., which mainly involves advanced algorithms and mathematical reasoning ability in mathematics. In China and some Asian countries, the Mathematics Olympiad often refers to a national, provincial and municipal mathematics competition in which primary and secondary school students participate. The main purpose of the Olympiad is to test students' mathematical ability and creativity, and to help students improve their mathematical skills and research ability.

"Mathematics Olympiad" is the abbreviation of the Mathematical Olympiad. The International Mathematical Olympiad (IMO) is an international competition with mathematics as the content and middle school students as the object, with a history of more than 30 years. As an international competition, the International Mathematical Olympiad is proposed by international mathematics education experts, and the scope of questions exceeds the compulsory education level of all countries, and the difficulty is much more than that of university entrance exams.

The vigorous development of the Mathematics Olympiad has greatly stimulated the interest of children in learning mathematics, and has become a useful activity to guide teenagers to be positive, actively explore, and grow up healthily. There are many problems that involve practical applications, such as counting, graph theory, logic, drawer principle, etc.

History

In 1934 and 1935, the Soviet Union began to hold secondary school mathematics competitions in Leningrad and Moscow, which gave the name of the Mathematical Olympiad. In 1959, the Romanian Society of Mathematical Physics invited middle school students from Eastern European countries to participate in the first International Mathematical Olympiad in Bucharest, which has been held annually since then and has been held for 52 sessions so far.

That's how I understand the title. 123+234+·· 789, this is 1 column.

100 columns is 50 loops.

And a cycle is "123+234+·· 789+987+876+·· 321”

The sum value can be as follows: "123 + 987 + 234 + 876 + 345 + 765 + · equals 1110 7 = 7770."

Because that's why science makes sense.

2. If x is negative, then Y=10 is obtained by Equation 1, and x=12 is substituted into Equation 2, which contradicts the assumption, so X is not negative.

In the same way, if y is a positive number, then x=12 is obtained by equation 2, and y=-14 is substituted into equation 1, which contradicts the assumption, so y is not positive.

Removing the absolute value, the two equations are reduced to: 2x+y=10, x-2y=12 to get x=, y=

x+y=Hope it helps.

The answer to the second question is 22 or 6

It depends on whether you are in elementary school or junior high school.

If the primary school graduation examination paper is probably produced by the school itself, then it is more difficult to distinguish the strengths and weaknesses of the students (especially in good junior high schools).

If you graduated from junior high school, if you are taking the high school entrance examination in the city, the questions are generally relatively simple, at most there are multiple choice questions and fill-in-the-blank questions, one difficult question and the finale, and the last two questions should not be difficult because its average score is prescribed (75 out of 100 points), so it will not be difficult.

However, if you want to take the test for schools outside the district that are enrolled in advance, it will still be more difficult (there are also large questions and not very difficult).

In fact, junior high school does not need to make up the Olympiad, and the problems we do are not like the kind of Olympiad problems that we learn outside the classroom like elementary school (such as the more difficult pursuit problems, encounter problems, cow grazing problems. It's just a combination of textbooks, combined with graphics, and it's not the kind of arcane that kills people.

If you're in elementary school, it's recommended to study it, but if you're in junior high school, you don't have to study it, just buy some difficult and flexible topics to do.

If it's a primary school graduation exam, the exam paper is probably from the city, then there will be no Olympiad Mathematics Simple principles to know on the line It is recommended to look at the book example questions and then do a little more difficult Flexible Topics that are firmly combined with textbook knowledge are generally not difficult.

There is generally no Olympiad in the primary school leaving exam, but there will be an entrance exam.