Halfway Between 72 and 521

When you ask "What number is halfway between 72 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=72 and Y=521.

Halfway Between Line

To find the number halfway between 72 and 521, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 72 and 521 into our formula, we get:

(72 + 521)/2 = 296.5

Thus, the number halfway between 72 and 521 is 296.5.

To check that our answer is correct, we subtract 72 from 296.5 and subtract 296.5 from 521 and compare the two numbers:

296.5 - 72 = 224.5
521 - 296.5 = 224.5

As you can see, the halfway number is 224.5 higher than 72 and 224.5 lower than 521. Therefore, our halfway between answer of 296.5 above is correct.

Halfway Between
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Halfway Between 72 and 522
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