When you ask "What number is halfway between 8 and 163?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=8 and Y=163.
To find the number halfway between 8 and 163, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 163 into our formula, we get:
(8 + 163)/2 = 85.5
Thus, the number halfway between 8 and 163 is 85.5.
To check that our answer is correct, we subtract 8 from 85.5 and subtract 85.5 from 163 and compare the two numbers:
85.5 - 8 = 77.5
163 - 85.5 = 77.5
As you can see, the halfway number is 77.5 higher than 8 and 77.5 lower than 163. Therefore, our halfway between answer of 85.5 above is correct.
Halfway Between
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Halfway Between 8 and 164
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