
When you ask "What number is halfway between 56 and 287?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=56 and Y=287.

To find the number halfway between 56 and 287, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 56 and 287 into our formula, we get:
(56 + 287)/2 = 171.5
Thus, the number halfway between 56 and 287 is 171.5.
To check that our answer is correct, we subtract 56 from 171.5 and subtract 171.5 from 287 and compare the two numbers:
171.5 - 56 = 115.5
287 - 171.5 = 115.5
As you can see, the halfway number is 115.5 higher than 56 and 115.5 lower than 287. Therefore, our halfway between answer of 171.5 above is correct.
Halfway Between
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Halfway Between 56 and 288
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