Halfway Between 55 and 678

When you ask "What number is halfway between 55 and 678?" 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=678.

Halfway Between Line

To find the number halfway between 55 and 678, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 55 and 678 into our formula, we get:

(55 + 678)/2 = 366.5

Thus, the number halfway between 55 and 678 is 366.5.

To check that our answer is correct, we subtract 55 from 366.5 and subtract 366.5 from 678 and compare the two numbers:

366.5 - 55 = 311.5
678 - 366.5 = 311.5

As you can see, the halfway number is 311.5 higher than 55 and 311.5 lower than 678. Therefore, our halfway between answer of 366.5 above is correct.

Halfway Between
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Halfway Between 55 and 679
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