When you ask "What number is halfway between 22 and 781?" 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=781.
To find the number halfway between 22 and 781, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 22 and 781 into our formula, we get:
(22 + 781)/2 = 401.5
Thus, the number halfway between 22 and 781 is 401.5.
To check that our answer is correct, we subtract 22 from 401.5 and subtract 401.5 from 781 and compare the two numbers:
401.5 - 22 = 379.5
781 - 401.5 = 379.5
As you can see, the halfway number is 379.5 higher than 22 and 379.5 lower than 781. Therefore, our halfway between answer of 401.5 above is correct.
Halfway Between
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Halfway Between 22 and 782
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