When you ask "What number is halfway between 30 and 235?" 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=235.
To find the number halfway between 30 and 235, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 235 into our formula, we get:
(30 + 235)/2 = 132.5
Thus, the number halfway between 30 and 235 is 132.5.
To check that our answer is correct, we subtract 30 from 132.5 and subtract 132.5 from 235 and compare the two numbers:
132.5 - 30 = 102.5
235 - 132.5 = 102.5
As you can see, the halfway number is 102.5 higher than 30 and 102.5 lower than 235. Therefore, our halfway between answer of 132.5 above is correct.
Halfway Between
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Halfway Between 30 and 236
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