
When you ask "What number is halfway between 3 and 493?" 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=493.

To find the number halfway between 3 and 493, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 493 into our formula, we get:
(3 + 493)/2 = 248
Thus, the number halfway between 3 and 493 is 248.
To check that our answer is correct, we subtract 3 from 248 and subtract 248 from 493 and compare the two numbers:
248 - 3 = 245
493 - 248 = 245
As you can see, the halfway number is 245 higher than 3 and 245 lower than 493. Therefore, our halfway between answer of 248 above is correct.
Halfway Between
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Halfway Between 3 and 494
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