When you ask "What number is halfway between 87 and 298?" 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=298.
To find the number halfway between 87 and 298, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 87 and 298 into our formula, we get:
(87 + 298)/2 = 192.5
Thus, the number halfway between 87 and 298 is 192.5.
To check that our answer is correct, we subtract 87 from 192.5 and subtract 192.5 from 298 and compare the two numbers:
192.5 - 87 = 105.5
298 - 192.5 = 105.5
As you can see, the halfway number is 105.5 higher than 87 and 105.5 lower than 298. Therefore, our halfway between answer of 192.5 above is correct.
Halfway Between
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Halfway Between 87 and 299
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