Halfway Between 55 and 509

When you ask "What number is halfway between 55 and 509?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=55 and Y=509.

Halfway Between Line

To find the number halfway between 55 and 509, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 55 and 509 into our formula, we get:

(55 + 509)/2 = 282

Thus, the number halfway between 55 and 509 is 282.

To check that our answer is correct, we subtract 55 from 282 and subtract 282 from 509 and compare the two numbers:

282 - 55 = 227
509 - 282 = 227

As you can see, the halfway number is 227 higher than 55 and 227 lower than 509. Therefore, our halfway between answer of 282 above is correct.

Halfway Between
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Halfway Between 55 and 510
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