When you ask "What number is halfway between 3 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=3 and Y=494.
To find the number halfway between 3 and 494, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 494 into our formula, we get:
(3 + 494)/2 = 248.5
Thus, the number halfway between 3 and 494 is 248.5.
To check that our answer is correct, we subtract 3 from 248.5 and subtract 248.5 from 494 and compare the two numbers:
248.5 - 3 = 245.5
494 - 248.5 = 245.5
As you can see, the halfway number is 245.5 higher than 3 and 245.5 lower than 494. Therefore, our halfway between answer of 248.5 above is correct.
Halfway Between
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Halfway Between 3 and 495
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