Halfway Between 9 and 164

When you ask "What number is halfway between 9 and 164?" 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=164.

Halfway Between Line

To find the number halfway between 9 and 164, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 9 and 164 into our formula, we get:

(9 + 164)/2 = 86.5

Thus, the number halfway between 9 and 164 is 86.5.

To check that our answer is correct, we subtract 9 from 86.5 and subtract 86.5 from 164 and compare the two numbers:

86.5 - 9 = 77.5
164 - 86.5 = 77.5

As you can see, the halfway number is 77.5 higher than 9 and 77.5 lower than 164. Therefore, our halfway between answer of 86.5 above is correct.

Halfway Between
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Halfway Between 9 and 165
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