When you ask "What number is halfway between 22 and 721?" 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=721.
To find the number halfway between 22 and 721, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 22 and 721 into our formula, we get:
(22 + 721)/2 = 371.5
Thus, the number halfway between 22 and 721 is 371.5.
To check that our answer is correct, we subtract 22 from 371.5 and subtract 371.5 from 721 and compare the two numbers:
371.5 - 22 = 349.5
721 - 371.5 = 349.5
As you can see, the halfway number is 349.5 higher than 22 and 349.5 lower than 721. Therefore, our halfway between answer of 371.5 above is correct.
Halfway Between
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Halfway Between 22 and 722
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