When you ask "What number is halfway between 87 and 560?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=87 and Y=560.
To find the number halfway between 87 and 560, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 87 and 560 into our formula, we get:
(87 + 560)/2 = 323.5
Thus, the number halfway between 87 and 560 is 323.5.
To check that our answer is correct, we subtract 87 from 323.5 and subtract 323.5 from 560 and compare the two numbers:
323.5 - 87 = 236.5
560 - 323.5 = 236.5
As you can see, the halfway number is 236.5 higher than 87 and 236.5 lower than 560. Therefore, our halfway between answer of 323.5 above is correct.
Halfway Between
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Halfway Between 87 and 561
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