Halfway Between 13 and 655

When you ask "What number is halfway between 13 and 655?" 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=655.

Halfway Between Line

To find the number halfway between 13 and 655, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 13 and 655 into our formula, we get:

(13 + 655)/2 = 334

Thus, the number halfway between 13 and 655 is 334.

To check that our answer is correct, we subtract 13 from 334 and subtract 334 from 655 and compare the two numbers:

334 - 13 = 321
655 - 334 = 321

As you can see, the halfway number is 321 higher than 13 and 321 lower than 655. Therefore, our halfway between answer of 334 above is correct.

Halfway Between
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Halfway Between 13 and 656
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