Halfway Between 1 and 513

When you ask "What number is halfway between 1 and 513?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=1 and Y=513.

Halfway Between Line

To find the number halfway between 1 and 513, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 1 and 513 into our formula, we get:

(1 + 513)/2 = 257

Thus, the number halfway between 1 and 513 is 257.

To check that our answer is correct, we subtract 1 from 257 and subtract 257 from 513 and compare the two numbers:

257 - 1 = 256
513 - 257 = 256

As you can see, the halfway number is 256 higher than 1 and 256 lower than 513. Therefore, our halfway between answer of 257 above is correct.

Halfway Between
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