Halfway Between 21 and 500

When you ask "What number is halfway between 21 and 500?" 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=500.

Halfway Between Line

To find the number halfway between 21 and 500, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 500 into our formula, we get:

(21 + 500)/2 = 260.5

Thus, the number halfway between 21 and 500 is 260.5.

To check that our answer is correct, we subtract 21 from 260.5 and subtract 260.5 from 500 and compare the two numbers:

260.5 - 21 = 239.5
500 - 260.5 = 239.5

As you can see, the halfway number is 239.5 higher than 21 and 239.5 lower than 500. Therefore, our halfway between answer of 260.5 above is correct.

Halfway Between
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Halfway Between 21 and 501
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