Halfway Between 5 and 638

When you ask "What number is halfway between 5 and 638?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=5 and Y=638.

Halfway Between Line

To find the number halfway between 5 and 638, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 5 and 638 into our formula, we get:

(5 + 638)/2 = 321.5

Thus, the number halfway between 5 and 638 is 321.5.

To check that our answer is correct, we subtract 5 from 321.5 and subtract 321.5 from 638 and compare the two numbers:

321.5 - 5 = 316.5
638 - 321.5 = 316.5

As you can see, the halfway number is 316.5 higher than 5 and 316.5 lower than 638. Therefore, our halfway between answer of 321.5 above is correct.

Halfway Between
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Halfway Between 5 and 639
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