When you ask "What number is halfway between 82 and 679?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=82 and Y=679.
To find the number halfway between 82 and 679, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 82 and 679 into our formula, we get:
(82 + 679)/2 = 380.5
Thus, the number halfway between 82 and 679 is 380.5.
To check that our answer is correct, we subtract 82 from 380.5 and subtract 380.5 from 679 and compare the two numbers:
380.5 - 82 = 298.5
679 - 380.5 = 298.5
As you can see, the halfway number is 298.5 higher than 82 and 298.5 lower than 679. Therefore, our halfway between answer of 380.5 above is correct.
Halfway Between
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Halfway Between 82 and 680
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