When you ask "What number is halfway between 84 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=84 and Y=288.
To find the number halfway between 84 and 288, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 84 and 288 into our formula, we get:
(84 + 288)/2 = 186
Thus, the number halfway between 84 and 288 is 186.
To check that our answer is correct, we subtract 84 from 186 and subtract 186 from 288 and compare the two numbers:
186 - 84 = 102
288 - 186 = 102
As you can see, the halfway number is 102 higher than 84 and 102 lower than 288. Therefore, our halfway between answer of 186 above is correct.
Halfway Between
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Halfway Between 84 and 289
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