When you ask "What number is halfway between 68 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=68 and Y=493.
To find the number halfway between 68 and 493, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 68 and 493 into our formula, we get:
(68 + 493)/2 = 280.5
Thus, the number halfway between 68 and 493 is 280.5.
To check that our answer is correct, we subtract 68 from 280.5 and subtract 280.5 from 493 and compare the two numbers:
280.5 - 68 = 212.5
493 - 280.5 = 212.5
As you can see, the halfway number is 212.5 higher than 68 and 212.5 lower than 493. Therefore, our halfway between answer of 280.5 above is correct.
Halfway Between
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Halfway Between 68 and 494
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