Halfway Between 4 and 521

When you ask "What number is halfway between 4 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=4 and Y=521.

Halfway Between Line

To find the number halfway between 4 and 521, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 4 and 521 into our formula, we get:

(4 + 521)/2 = 262.5

Thus, the number halfway between 4 and 521 is 262.5.

To check that our answer is correct, we subtract 4 from 262.5 and subtract 262.5 from 521 and compare the two numbers:

262.5 - 4 = 258.5
521 - 262.5 = 258.5

As you can see, the halfway number is 258.5 higher than 4 and 258.5 lower than 521. Therefore, our halfway between answer of 262.5 above is correct.

Halfway Between
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Halfway Between 4 and 522
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