Halfway Between 9 and 251

When you ask "What number is halfway between 9 and 251?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=251.

Halfway Between Line

To find the number halfway between 9 and 251, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 9 and 251 into our formula, we get:

(9 + 251)/2 = 130

Thus, the number halfway between 9 and 251 is 130.

To check that our answer is correct, we subtract 9 from 130 and subtract 130 from 251 and compare the two numbers:

130 - 9 = 121
251 - 130 = 121

As you can see, the halfway number is 121 higher than 9 and 121 lower than 251. Therefore, our halfway between answer of 130 above is correct.

Halfway Between
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Halfway Between 9 and 252
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