Halfway Between 31 and 279

When you ask "What number is halfway between 31 and 279?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=31 and Y=279.

Halfway Between Line

To find the number halfway between 31 and 279, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 31 and 279 into our formula, we get:

(31 + 279)/2 = 155

Thus, the number halfway between 31 and 279 is 155.

To check that our answer is correct, we subtract 31 from 155 and subtract 155 from 279 and compare the two numbers:

155 - 31 = 124
279 - 155 = 124

As you can see, the halfway number is 124 higher than 31 and 124 lower than 279. Therefore, our halfway between answer of 155 above is correct.

Halfway Between
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Halfway Between 31 and 280
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