
When you ask "What number is halfway between 30 and 114?" 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=114.

To find the number halfway between 30 and 114, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 114 into our formula, we get:
(30 + 114)/2 = 72
Thus, the number halfway between 30 and 114 is 72.
To check that our answer is correct, we subtract 30 from 72 and subtract 72 from 114 and compare the two numbers:
72 - 30 = 42
114 - 72 = 42
As you can see, the halfway number is 42 higher than 30 and 42 lower than 114. Therefore, our halfway between answer of 72 above is correct.
Halfway Between
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Halfway Between 30 and 115
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