When you ask "What number is halfway between 87 and 364?" 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=364.
To find the number halfway between 87 and 364, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 87 and 364 into our formula, we get:
(87 + 364)/2 = 225.5
Thus, the number halfway between 87 and 364 is 225.5.
To check that our answer is correct, we subtract 87 from 225.5 and subtract 225.5 from 364 and compare the two numbers:
225.5 - 87 = 138.5
364 - 225.5 = 138.5
As you can see, the halfway number is 138.5 higher than 87 and 138.5 lower than 364. Therefore, our halfway between answer of 225.5 above is correct.
Halfway Between
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Halfway Between 87 and 365
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