Halfway Between 72 and 688

When you ask "What number is halfway between 72 and 688?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=72 and Y=688.

Halfway Between Line

To find the number halfway between 72 and 688, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 72 and 688 into our formula, we get:

(72 + 688)/2 = 380

Thus, the number halfway between 72 and 688 is 380.

To check that our answer is correct, we subtract 72 from 380 and subtract 380 from 688 and compare the two numbers:

380 - 72 = 308
688 - 380 = 308

As you can see, the halfway number is 308 higher than 72 and 308 lower than 688. Therefore, our halfway between answer of 380 above is correct.

Halfway Between
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