Halfway Between 25 and 821

When you ask "What number is halfway between 25 and 821?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=25 and Y=821.

Halfway Between Line

To find the number halfway between 25 and 821, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 25 and 821 into our formula, we get:

(25 + 821)/2 = 423

Thus, the number halfway between 25 and 821 is 423.

To check that our answer is correct, we subtract 25 from 423 and subtract 423 from 821 and compare the two numbers:

423 - 25 = 398
821 - 423 = 398

As you can see, the halfway number is 398 higher than 25 and 398 lower than 821. Therefore, our halfway between answer of 423 above is correct.

Halfway Between
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Halfway Between 25 and 822
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