When you ask "What number is halfway between 9 and 302?" 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=302.
To find the number halfway between 9 and 302, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 9 and 302 into our formula, we get:
(9 + 302)/2 = 155.5
Thus, the number halfway between 9 and 302 is 155.5.
To check that our answer is correct, we subtract 9 from 155.5 and subtract 155.5 from 302 and compare the two numbers:
155.5 - 9 = 146.5
302 - 155.5 = 146.5
As you can see, the halfway number is 146.5 higher than 9 and 146.5 lower than 302. Therefore, our halfway between answer of 155.5 above is correct.
Halfway Between
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Halfway Between 9 and 303
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