When you ask "What number is halfway between 9 and 234?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=234.
To find the number halfway between 9 and 234, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 9 and 234 into our formula, we get:
(9 + 234)/2 = 121.5
Thus, the number halfway between 9 and 234 is 121.5.
To check that our answer is correct, we subtract 9 from 121.5 and subtract 121.5 from 234 and compare the two numbers:
121.5 - 9 = 112.5
234 - 121.5 = 112.5
As you can see, the halfway number is 112.5 higher than 9 and 112.5 lower than 234. Therefore, our halfway between answer of 121.5 above is correct.
Halfway Between
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Halfway Between 9 and 235
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