Halfway Between 55 and 199

When you ask "What number is halfway between 55 and 199?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=55 and Y=199.

Halfway Between Line

To find the number halfway between 55 and 199, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 55 and 199 into our formula, we get:

(55 + 199)/2 = 127

Thus, the number halfway between 55 and 199 is 127.

To check that our answer is correct, we subtract 55 from 127 and subtract 127 from 199 and compare the two numbers:

127 - 55 = 72
199 - 127 = 72

As you can see, the halfway number is 72 higher than 55 and 72 lower than 199. Therefore, our halfway between answer of 127 above is correct.

Halfway Between
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Halfway Between 55 and 200
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