100 points!! Do not steal the points otherwise I will report! The sum of three numbers is 254.772. We can get the biggest and smallest numbers if we move the decimal point in the middle number two digits to the right and one digit to the left, respectively. What is the middle number?

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Middle Number = -25247.9052

Step-by-step explanation:

Sum of numbers = 254.772

Biggest Number = Moving the decimal point two digits to the right = 25477.2

Smallest Number = Moving the decimal point two digits to the left = 25.4772

Middle Number = ?

Biggest Number  + Middle Number + Smallest Number= 254.772

25477.2 + Middle Number + 25.4772 = 254.772

Middle Number = 254.772 - 25477.2 -  25.4772

Middle Number = -25247.9052

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490