When you ask "What number is halfway between 8 and 211?" 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=211.
To find the number halfway between 8 and 211, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 211 into our formula, we get:
(8 + 211)/2 = 109.5
Thus, the number halfway between 8 and 211 is 109.5.
To check that our answer is correct, we subtract 8 from 109.5 and subtract 109.5 from 211 and compare the two numbers:
109.5 - 8 = 101.5
211 - 109.5 = 101.5
As you can see, the halfway number is 101.5 higher than 8 and 101.5 lower than 211. Therefore, our halfway between answer of 109.5 above is correct.
Halfway Between
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Halfway Between 8 and 212
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