When you ask "What number is halfway between 23 and 522?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=23 and Y=522.
To find the number halfway between 23 and 522, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 23 and 522 into our formula, we get:
(23 + 522)/2 = 272.5
Thus, the number halfway between 23 and 522 is 272.5.
To check that our answer is correct, we subtract 23 from 272.5 and subtract 272.5 from 522 and compare the two numbers:
272.5 - 23 = 249.5
522 - 272.5 = 249.5
As you can see, the halfway number is 249.5 higher than 23 and 249.5 lower than 522. Therefore, our halfway between answer of 272.5 above is correct.
Halfway Between
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Halfway Between 23 and 523
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