Halfway Between 80 and 642

When you ask "What number is halfway between 80 and 642?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=80 and Y=642.

Halfway Between Line

To find the number halfway between 80 and 642, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 80 and 642 into our formula, we get:

(80 + 642)/2 = 361

Thus, the number halfway between 80 and 642 is 361.

To check that our answer is correct, we subtract 80 from 361 and subtract 361 from 642 and compare the two numbers:

361 - 80 = 281
642 - 361 = 281

As you can see, the halfway number is 281 higher than 80 and 281 lower than 642. Therefore, our halfway between answer of 361 above is correct.

Halfway Between
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Halfway Between 80 and 643
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