Halfway Between 13 and 521

When you ask "What number is halfway between 13 and 521?" 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=521.

Halfway Between Line

To find the number halfway between 13 and 521, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 13 and 521 into our formula, we get:

(13 + 521)/2 = 267

Thus, the number halfway between 13 and 521 is 267.

To check that our answer is correct, we subtract 13 from 267 and subtract 267 from 521 and compare the two numbers:

267 - 13 = 254
521 - 267 = 254

As you can see, the halfway number is 254 higher than 13 and 254 lower than 521. Therefore, our halfway between answer of 267 above is correct.

Halfway Between
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Halfway Between 13 and 522
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