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1. Rounding a five digit number to ten thousand is about seventy thousand. What's the maximum and minimum of this number? 2. What's the number of nine digits that can be read out of all zeros with the nine digits of three thousand?
1. The maximum is 69999, and the minimum is 65000. According to the law of rounding, it is more intuitive. 2. 30303 is read as 303 million, 303 million, 30303 million, and four zeros are read
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- 14. An eight digit number is composed of eight digits: 0, 1, 2, 3, 4, 5, 6 and 7. After rounding to ten million digits, it is about 70 million. What is the maximum and minimum of the eight digit number?
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