Halfway Between 80 and 317

When you ask "What number is halfway between 80 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=80 and Y=317.

Halfway Between Line

To find the number halfway between 80 and 317, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 80 and 317 into our formula, we get:

(80 + 317)/2 = 198.5

Thus, the number halfway between 80 and 317 is 198.5.

To check that our answer is correct, we subtract 80 from 198.5 and subtract 198.5 from 317 and compare the two numbers:

198.5 - 80 = 118.5
317 - 198.5 = 118.5

As you can see, the halfway number is 118.5 higher than 80 and 118.5 lower than 317. Therefore, our halfway between answer of 198.5 above is correct.

Halfway Between
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Halfway Between 80 and 318
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