Halfway Between 66 and 678

When you ask "What number is halfway between 66 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=66 and Y=678.

Halfway Between Line

To find the number halfway between 66 and 678, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 66 and 678 into our formula, we get:

(66 + 678)/2 = 372

Thus, the number halfway between 66 and 678 is 372.

To check that our answer is correct, we subtract 66 from 372 and subtract 372 from 678 and compare the two numbers:

372 - 66 = 306
678 - 372 = 306

As you can see, the halfway number is 306 higher than 66 and 306 lower than 678. Therefore, our halfway between answer of 372 above is correct.

Halfway Between
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Halfway Between 66 and 679
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