Who has math questions about the Mathematics Olympiad in primary school

Too much don't want to type what to do.

You can go to the bookstore and buy "Olympiad Daily Practice" and "Huashu Test", I use it, the content is very good.

The two grain depots of A and B originally stored 170 tons of grain, and later Pei Yinqi transported 30 tons from the first depot and 10 tons to the B depot, at this time, the grain stored in A was twice as much as the grain stored in B, and how many tons of grain were stored in each of the two grain depots?

Analysis: According to the original coexistence of 170 tons of grain in the two grain depots of A and B, 30 tons were transported from the first warehouse and 10 tons were transported to the B warehouse, and how many tons of grain were co-stored in the two warehouses A and B at this time. According to"At this time, the grain stored in A is twice as much as the grain stored in B"At this time, if the grain stored in B is taken as 1 time, then the grain stored in warehouses A and B is equivalent to 3 times the grain stored in B.

So find out how many tons of grain B has in stock at this time, and then find out how many tons of grain was originally stored in warehouse B. Finally, you can find out how many tons of grain was originally stored in warehouse A.

The original grain storage of warehouse A was 130 tons, and the original storage of grain of warehouse B was 40 tons.

1. If you are good at Olympiad mathematics and your mathematical thinking is opened, you will naturally feel very easy to learn basic mathematics. But pay great attention to whether the child is interested in learning, if the child does not like it and learns very hard, then reluctant to learn, not only will not be gained, but also will affect the confidence of basic mathematics.

2. Junior high school mathematics is the basic content, and the exam questions have nothing to do with Olympiad mathematics. If you keep up with the teacher's pace, you will learn well. We studied the Olympiad for a few years in elementary school, but when we reached the sixth grade, we found it too difficult and very difficult, so we never studied it again.

It is quite simple to go to junior high school, but it will have a huge impact on the future junior high school learning, and it will open up your thinking and think from different angles.

You can sign up for some crash courses, or master some of the following skills.

1) Inductive method: start from the number with a small conditional value, find out the law, or find out the recursive quantity relationship in it, and summarize the quantity relationship in general

2) Holistic approach: When solving the counting problem, sometimes it is necessary to "break the whole into parts" to make the problem simple; Sometimes, on the contrary, it is necessary to consider the problem as a whole, and to study the problem from the overall situation and from the whole, which is conducive to discovering the quantitative relationship

3) Correspondence method: Linking an uncountable quantity with a certain measurable thing, as long as a one-to-one correspondence can be established, then these two things are the same in quantity In fact, the insertion method and the insertion method are both a manifestation of the correspondence method

4) Recursive method: for some counting problems that are difficult to find its general situation, can find out the recursive relationship between its adjacent numbers, and with this recursive relationship, you can use the number in front to find the unknown number behind, this method is called recursive method

The score of the Olympiad is about 10 percent, but it will infiltrate some question types in some fill-in-the-blank and application questions, the cow eats grass and the chicken and rabbit are in the same cage, and the score is cleverly calculated, and the area of the plane figure, especially the circle test, is more. If you don't know too much about it, you still have a good foundation and then study it, and sometimes you don't know a little about Olympiad mathematics, but sometimes it will not help, and sometimes it can add to the chaos.

The Mathematical Olympiad can be basically divided into five categories.

1. Quick calculation and clever calculation: including fractions, decimal integers.

2. Counting; It includes figures, numbers, 3. the area of plane figures and the volume of three-dimensional figures, and 4. application problems. Cows eat grass, chickens and rabbits are in the same cage, travel problems, profit and loss problems, tree planting problems, ratio and proportion, equation solving, probably that's all, five, is some clever solution, this is a lot of kinds.

If you really don't know anything about Olympiad math, you might as well spend more time figuring out the basic questions! Better in the details! After all, the Olympiad is not something that can be conquered in a few days!

It's too late now, but you can take a look at the Olympiad questions, see the solution ideas, exams, basic questions are still very important, you will be basically on the foundation, and then spend time to watch the Olympiad.

The focus of the school selection is the Olympiad, although the country has banned the Olympiad, but.

In the actual school choice test, the Olympiad is still very popular. It is recommended that if you must choose a school, you should choose to take an Olympiad cram school, if you don't need to choose a school, you can grasp the basic knowledge, do more exercises, and you can also improve yourself.