When you ask "What number is halfway between 8 and 415?" 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=415.
To find the number halfway between 8 and 415, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 415 into our formula, we get:
(8 + 415)/2 = 211.5
Thus, the number halfway between 8 and 415 is 211.5.
To check that our answer is correct, we subtract 8 from 211.5 and subtract 211.5 from 415 and compare the two numbers:
211.5 - 8 = 203.5
415 - 211.5 = 203.5
As you can see, the halfway number is 203.5 higher than 8 and 203.5 lower than 415. Therefore, our halfway between answer of 211.5 above is correct.
Halfway Between
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Halfway Between 8 and 416
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