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The second grade math problem is that the main peak of Mount Hengshan in Beiyue is about 20 17 meters above sea level. What does 2 mean?
The number 2 stands for thousands.

The main peak of Mount Hengshan in Beiyue is about 20 17 meters above sea level. The number 2 stands for thousands in 2065,438+07. What's the number of thousands? It represents thousands of people. Similarly, there is 1, which stands for ten digits and 7 stands for single digits.