If Whitmey wrote the decimal representations for the first 300 positive integer multiples of 5 and did not write any other numbers, how many times would she have written the digit 5?
150
185
186
200
201
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题干看错了,不是300内写了多少个五,而是前300个五的倍数,所以是1500以内写了多少个5...
题干看错了,不是300内写了多少个五,而是前300个五的倍数,所以是1500以内写了多少个5...
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