Halfway Between 100 and 684

When you ask "What number is halfway between 100 and 684?" 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=684.

Halfway Between Line

To find the number halfway between 100 and 684, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 684 into our formula, we get:

(100 + 684)/2 = 392

Thus, the number halfway between 100 and 684 is 392.

To check that our answer is correct, we subtract 100 from 392 and subtract 392 from 684 and compare the two numbers:

392 - 100 = 292
684 - 392 = 292

As you can see, the halfway number is 292 higher than 100 and 292 lower than 684. Therefore, our halfway between answer of 392 above is correct.

Halfway Between
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Halfway Between 100 and 685
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