Halfway Between 13 and 489

When you ask "What number is halfway between 13 and 489?" 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=489.

Halfway Between Line

To find the number halfway between 13 and 489, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 13 and 489 into our formula, we get:

(13 + 489)/2 = 251

Thus, the number halfway between 13 and 489 is 251.

To check that our answer is correct, we subtract 13 from 251 and subtract 251 from 489 and compare the two numbers:

251 - 13 = 238
489 - 251 = 238

As you can see, the halfway number is 238 higher than 13 and 238 lower than 489. Therefore, our halfway between answer of 251 above is correct.

Halfway Between
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