Mathematics
Mathematics, 22.03.2021 14:00, brcribb

An addy number is a 5-digit number with the following properties: the first (leftmost)digit + the second digit is the third digit.
the second digit + third digit is the fourth digit.
the third digit + fourth is the fifth digit
all the digits are different
how many different addy numbers are possible?

answer
Answers: 1

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An addy number is a 5-digit number with the following properties: the first (leftmost)digit + the s...

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