When you ask "What number is halfway between 30 and 227?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=227.
To find the number halfway between 30 and 227, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 227 into our formula, we get:
(30 + 227)/2 = 128.5
Thus, the number halfway between 30 and 227 is 128.5.
To check that our answer is correct, we subtract 30 from 128.5 and subtract 128.5 from 227 and compare the two numbers:
128.5 - 30 = 98.5
227 - 128.5 = 98.5
As you can see, the halfway number is 98.5 higher than 30 and 98.5 lower than 227. Therefore, our halfway between answer of 128.5 above is correct.
Halfway Between
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Halfway Between 30 and 228
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