Addition of two-digit consecutive numbers, divide by 2 and subtract by the number started with, why do I always get .5?
Md Ariful Islam
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এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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পিজিটি(মেডিসিন)
Whenever you add together two consecutive numbers, the sum is an odd number. When you divide any odd number by two, you get a quotient beginning with the first digit or digits you started with and ending in .5. Then if you subtract the first digit(s) from the quotient, you're left with .5. This is true when working with any consecutive numbers, two-digit or otherwise.
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