
When you ask "What number is halfway between 82 and 488?" 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=488.

To find the number halfway between 82 and 488, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 82 and 488 into our formula, we get:
(82 + 488)/2 = 285
Thus, the number halfway between 82 and 488 is 285.
To check that our answer is correct, we subtract 82 from 285 and subtract 285 from 488 and compare the two numbers:
285 - 82 = 203
488 - 285 = 203
As you can see, the halfway number is 203 higher than 82 and 203 lower than 488. Therefore, our halfway between answer of 285 above is correct.
Halfway Between
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Halfway Between 82 and 489
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