When you ask "What number is halfway between 8 and 249?" 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=249.
To find the number halfway between 8 and 249, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 249 into our formula, we get:
(8 + 249)/2 = 128.5
Thus, the number halfway between 8 and 249 is 128.5.
To check that our answer is correct, we subtract 8 from 128.5 and subtract 128.5 from 249 and compare the two numbers:
128.5 - 8 = 120.5
249 - 128.5 = 120.5
As you can see, the halfway number is 120.5 higher than 8 and 120.5 lower than 249. Therefore, our halfway between answer of 128.5 above is correct.
Halfway Between
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Halfway Between 8 and 250
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