When you ask "What number is halfway between 22 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=22 and Y=493.
To find the number halfway between 22 and 493, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 22 and 493 into our formula, we get:
(22 + 493)/2 = 257.5
Thus, the number halfway between 22 and 493 is 257.5.
To check that our answer is correct, we subtract 22 from 257.5 and subtract 257.5 from 493 and compare the two numbers:
257.5 - 22 = 235.5
493 - 257.5 = 235.5
As you can see, the halfway number is 235.5 higher than 22 and 235.5 lower than 493. Therefore, our halfway between answer of 257.5 above is correct.
Halfway Between
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Halfway Between 22 and 494
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