David number
Jane and David train in the addition of decimal numbers so that each of them will write a single number, and these two numbers will then be added up. The last example was 11.11. David's number also had the same number of digits before and after a point. Jane's number has the same property. David's number has different digits. Jane's number had exactly two digits the same. Find the largest possible number David could write.
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arithmeticbasic operations and conceptsnumbersthemes, topicsGrade of the word problem
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