Halfway Between 100 and 512

When you ask "What number is halfway between 100 and 512?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=100 and Y=512.

Halfway Between Line

To find the number halfway between 100 and 512, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 512 into our formula, we get:

(100 + 512)/2 = 306

Thus, the number halfway between 100 and 512 is 306.

To check that our answer is correct, we subtract 100 from 306 and subtract 306 from 512 and compare the two numbers:

306 - 100 = 206
512 - 306 = 206

As you can see, the halfway number is 206 higher than 100 and 206 lower than 512. Therefore, our halfway between answer of 306 above is correct.

Halfway Between
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Halfway Between 100 and 513
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