Joke Collection Website - Mood Talk - Tell me where the approximate number is rounded off. The total length of the main line is 2397 kilometers, about 2 kilometers.
Tell me where the approximate number is rounded off. The total length of the main line is 2397 kilometers, about 2 kilometers.
The approximate number usually refers to the number after the decimal point (two digits or three digits are reserved), and the error when used for integers (such as thousands of digits) will be very large.
Take the figure provided in the title as an example, 2397 km =2.379 km (km), which is about 2 km according to the rounding principle. The actual difference is 397 kilometers (converted into kilometers is 397 kilometers).
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