Halfway Between 12 and 518

When you ask "What number is halfway between 12 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=12 and Y=518.

Halfway Between Line

To find the number halfway between 12 and 518, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 12 and 518 into our formula, we get:

(12 + 518)/2 = 265

Thus, the number halfway between 12 and 518 is 265.

To check that our answer is correct, we subtract 12 from 265 and subtract 265 from 518 and compare the two numbers:

265 - 12 = 253
518 - 265 = 253

As you can see, the halfway number is 253 higher than 12 and 253 lower than 518. Therefore, our halfway between answer of 265 above is correct.

Halfway Between
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Halfway Between 12 and 519
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