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8 and 6 have a difference of 2 and a sum of 14.
To estimate the sum is to guess what the answer is for an addition problem. For example, if it was 8 + 9 you would see what number 8 is close to (like ten) and do the same with number nine and your estimate would be 20.
the sum of two whole numbers are 77 .their difference is 48.what are the two numbers
a²-b²
a difference