Halfway Between 21 and 501

When you ask "What number is halfway between 21 and 501?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=21 and Y=501.

Halfway Between Line

To find the number halfway between 21 and 501, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 501 into our formula, we get:

(21 + 501)/2 = 261

Thus, the number halfway between 21 and 501 is 261.

To check that our answer is correct, we subtract 21 from 261 and subtract 261 from 501 and compare the two numbers:

261 - 21 = 240
501 - 261 = 240

As you can see, the halfway number is 240 higher than 21 and 240 lower than 501. Therefore, our halfway between answer of 261 above is correct.

Halfway Between
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Halfway Between 21 and 502
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