
When you ask "What number is halfway between 29 and 288?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=29 and Y=288.

To find the number halfway between 29 and 288, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 29 and 288 into our formula, we get:
(29 + 288)/2 = 158.5
Thus, the number halfway between 29 and 288 is 158.5.
To check that our answer is correct, we subtract 29 from 158.5 and subtract 158.5 from 288 and compare the two numbers:
158.5 - 29 = 129.5
288 - 158.5 = 129.5
As you can see, the halfway number is 129.5 higher than 29 and 129.5 lower than 288. Therefore, our halfway between answer of 158.5 above is correct.
Halfway Between
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Halfway Between 29 and 289
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