When you ask "What number is halfway between 23 and 494?" 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=494.
To find the number halfway between 23 and 494, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 23 and 494 into our formula, we get:
(23 + 494)/2 = 258.5
Thus, the number halfway between 23 and 494 is 258.5.
To check that our answer is correct, we subtract 23 from 258.5 and subtract 258.5 from 494 and compare the two numbers:
258.5 - 23 = 235.5
494 - 258.5 = 235.5
As you can see, the halfway number is 235.5 higher than 23 and 235.5 lower than 494. Therefore, our halfway between answer of 258.5 above is correct.
Halfway Between
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Halfway Between 23 and 495
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