Halfway Between 85 and 518

When you ask "What number is halfway between 85 and 518?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=85 and Y=518.

Halfway Between Line

To find the number halfway between 85 and 518, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 85 and 518 into our formula, we get:

(85 + 518)/2 = 301.5

Thus, the number halfway between 85 and 518 is 301.5.

To check that our answer is correct, we subtract 85 from 301.5 and subtract 301.5 from 518 and compare the two numbers:

301.5 - 85 = 216.5
518 - 301.5 = 216.5

As you can see, the halfway number is 216.5 higher than 85 and 216.5 lower than 518. Therefore, our halfway between answer of 301.5 above is correct.

Halfway Between
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Halfway Between 85 and 519
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