Halfway Between 20 and 490

When you ask "What number is halfway between 20 and 490?" 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=490.

Halfway Between Line

To find the number halfway between 20 and 490, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 20 and 490 into our formula, we get:

(20 + 490)/2 = 255

Thus, the number halfway between 20 and 490 is 255.

To check that our answer is correct, we subtract 20 from 255 and subtract 255 from 490 and compare the two numbers:

255 - 20 = 235
490 - 255 = 235

As you can see, the halfway number is 235 higher than 20 and 235 lower than 490. Therefore, our halfway between answer of 255 above is correct.

Halfway Between
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Halfway Between 20 and 491
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