Halfway Between 78 and 552

When you ask "What number is halfway between 78 and 552?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=78 and Y=552.

Halfway Between Line

To find the number halfway between 78 and 552, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 78 and 552 into our formula, we get:

(78 + 552)/2 = 315

Thus, the number halfway between 78 and 552 is 315.

To check that our answer is correct, we subtract 78 from 315 and subtract 315 from 552 and compare the two numbers:

315 - 78 = 237
552 - 315 = 237

As you can see, the halfway number is 237 higher than 78 and 237 lower than 552. Therefore, our halfway between answer of 315 above is correct.

Halfway Between
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Halfway Between 78 and 553
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