When you ask "What number is halfway between 8 and 285?" 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=285.
To find the number halfway between 8 and 285, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 285 into our formula, we get:
(8 + 285)/2 = 146.5
Thus, the number halfway between 8 and 285 is 146.5.
To check that our answer is correct, we subtract 8 from 146.5 and subtract 146.5 from 285 and compare the two numbers:
146.5 - 8 = 138.5
285 - 146.5 = 138.5
As you can see, the halfway number is 138.5 higher than 8 and 138.5 lower than 285. Therefore, our halfway between answer of 146.5 above is correct.
Halfway Between
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Halfway Between 8 and 286
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