
When you ask "What number is halfway between 9 and 202?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=202.

To find the number halfway between 9 and 202, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 9 and 202 into our formula, we get:
(9 + 202)/2 = 105.5
Thus, the number halfway between 9 and 202 is 105.5.
To check that our answer is correct, we subtract 9 from 105.5 and subtract 105.5 from 202 and compare the two numbers:
105.5 - 9 = 96.5
202 - 105.5 = 96.5
As you can see, the halfway number is 96.5 higher than 9 and 96.5 lower than 202. Therefore, our halfway between answer of 105.5 above is correct.
Halfway Between
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Halfway Between 9 and 203
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