When you ask "What number is halfway between 82 and 331?" 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=331.
To find the number halfway between 82 and 331, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 82 and 331 into our formula, we get:
(82 + 331)/2 = 206.5
Thus, the number halfway between 82 and 331 is 206.5.
To check that our answer is correct, we subtract 82 from 206.5 and subtract 206.5 from 331 and compare the two numbers:
206.5 - 82 = 124.5
331 - 206.5 = 124.5
As you can see, the halfway number is 124.5 higher than 82 and 124.5 lower than 331. Therefore, our halfway between answer of 206.5 above is correct.
Halfway Between
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Halfway Between 82 and 332
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