Find two numbers whose product is a one-digit number and the sum is a two-digit number
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Next, adding the sum and product of the digits of the two-digit number and comparing it to the original number. Thus, ff the numbers are same, then it is a special two-digit number, else it is not. Therefore, the numbers 1 and 9 are the two numbers.
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Next, adding the sum and product of the digits of the two-digit number and comparing it to the original number. Thus, ff the numbers are same, then it is a special two-digit number, else it is not. Therefore, the numbers 1 and 9 are the two numbers.
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