When you ask "What number is halfway between 22 and 122?" 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=122.
To find the number halfway between 22 and 122, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 22 and 122 into our formula, we get:
(22 + 122)/2 = 72
Thus, the number halfway between 22 and 122 is 72.
To check that our answer is correct, we subtract 22 from 72 and subtract 72 from 122 and compare the two numbers:
72 - 22 = 50
122 - 72 = 50
As you can see, the halfway number is 50 higher than 22 and 50 lower than 122. Therefore, our halfway between answer of 72 above is correct.
Halfway Between
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Halfway Between 22 and 123
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