When you ask "What number is halfway between 83 and 173?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=83 and Y=173.
To find the number halfway between 83 and 173, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 83 and 173 into our formula, we get:
(83 + 173)/2 = 128
Thus, the number halfway between 83 and 173 is 128.
To check that our answer is correct, we subtract 83 from 128 and subtract 128 from 173 and compare the two numbers:
128 - 83 = 45
173 - 128 = 45
As you can see, the halfway number is 45 higher than 83 and 45 lower than 173. Therefore, our halfway between answer of 128 above is correct.
Halfway Between
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Halfway Between 83 and 174
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