Halfway Between 100 and 620

When you ask "What number is halfway between 100 and 620?" 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=620.

Halfway Between Line

To find the number halfway between 100 and 620, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 100 and 620 into our formula, we get:

(100 + 620)/2 = 360

Thus, the number halfway between 100 and 620 is 360.

To check that our answer is correct, we subtract 100 from 360 and subtract 360 from 620 and compare the two numbers:

360 - 100 = 260
620 - 360 = 260

As you can see, the halfway number is 260 higher than 100 and 260 lower than 620. Therefore, our halfway between answer of 360 above is correct.

Halfway Between
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Halfway Between 100 and 621
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