When you ask "What number is halfway between 8 and 218?" 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=218.
To find the number halfway between 8 and 218, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 218 into our formula, we get:
(8 + 218)/2 = 113
Thus, the number halfway between 8 and 218 is 113.
To check that our answer is correct, we subtract 8 from 113 and subtract 113 from 218 and compare the two numbers:
113 - 8 = 105
218 - 113 = 105
As you can see, the halfway number is 105 higher than 8 and 105 lower than 218. Therefore, our halfway between answer of 113 above is correct.
Halfway Between
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Halfway Between 8 and 219
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