Halfway Between 100 and 675

When you ask "What number is halfway between 100 and 675?" 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=675.

Halfway Between Line

To find the number halfway between 100 and 675, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 675 into our formula, we get:

(100 + 675)/2 = 387.5

Thus, the number halfway between 100 and 675 is 387.5.

To check that our answer is correct, we subtract 100 from 387.5 and subtract 387.5 from 675 and compare the two numbers:

387.5 - 100 = 287.5
675 - 387.5 = 287.5

As you can see, the halfway number is 287.5 higher than 100 and 287.5 lower than 675. Therefore, our halfway between answer of 387.5 above is correct.

Halfway Between
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Halfway Between 100 and 676
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