
When you ask "What number is halfway between 49 and 317?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=49 and Y=317.

To find the number halfway between 49 and 317, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 317 into our formula, we get:
(49 + 317)/2 = 183
Thus, the number halfway between 49 and 317 is 183.
To check that our answer is correct, we subtract 49 from 183 and subtract 183 from 317 and compare the two numbers:
183 - 49 = 134
317 - 183 = 134
As you can see, the halfway number is 134 higher than 49 and 134 lower than 317. Therefore, our halfway between answer of 183 above is correct.
Halfway Between
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Halfway Between 49 and 318
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