When you ask "What number is halfway between 8 and 331?" 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=331.
To find the number halfway between 8 and 331, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 331 into our formula, we get:
(8 + 331)/2 = 169.5
Thus, the number halfway between 8 and 331 is 169.5.
To check that our answer is correct, we subtract 8 from 169.5 and subtract 169.5 from 331 and compare the two numbers:
169.5 - 8 = 161.5
331 - 169.5 = 161.5
As you can see, the halfway number is 161.5 higher than 8 and 161.5 lower than 331. Therefore, our halfway between answer of 169.5 above is correct.
Halfway Between
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Halfway Between 8 and 332
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