Halfway Between 13 and 627

When you ask "What number is halfway between 13 and 627?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=13 and Y=627.

Halfway Between Line

To find the number halfway between 13 and 627, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 13 and 627 into our formula, we get:

(13 + 627)/2 = 320

Thus, the number halfway between 13 and 627 is 320.

To check that our answer is correct, we subtract 13 from 320 and subtract 320 from 627 and compare the two numbers:

320 - 13 = 307
627 - 320 = 307

As you can see, the halfway number is 307 higher than 13 and 307 lower than 627. Therefore, our halfway between answer of 320 above is correct.

Halfway Between
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Halfway Between 13 and 628
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