Halfway Between 20 and 520

When you ask "What number is halfway between 20 and 520?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=20 and Y=520.

Halfway Between Line

To find the number halfway between 20 and 520, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 20 and 520 into our formula, we get:

(20 + 520)/2 = 270

Thus, the number halfway between 20 and 520 is 270.

To check that our answer is correct, we subtract 20 from 270 and subtract 270 from 520 and compare the two numbers:

270 - 20 = 250
520 - 270 = 250

As you can see, the halfway number is 250 higher than 20 and 250 lower than 520. Therefore, our halfway between answer of 270 above is correct.

Halfway Between
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Halfway Between 20 and 521
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