MongoRegex decimal number problems [closed]

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I need search prices which contains number 2 in start and after . 00-99, but it find prices like 12.00, 25.99, 2.00, 2.28 not only 2.00, 2.28. Is any idea how fix this problem? Thanks.

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the regex to do this is simply:

/\A2\.[0-9]{2}\Z/