Halfway Between 100 and 838

When you ask "What number is halfway between 100 and 838?" 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=838.

Halfway Between Line

To find the number halfway between 100 and 838, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 838 into our formula, we get:

(100 + 838)/2 = 469

Thus, the number halfway between 100 and 838 is 469.

To check that our answer is correct, we subtract 100 from 469 and subtract 469 from 838 and compare the two numbers:

469 - 100 = 369
838 - 469 = 369

As you can see, the halfway number is 369 higher than 100 and 369 lower than 838. Therefore, our halfway between answer of 469 above is correct.

Halfway Between
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Halfway Between 100 and 839
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