When you ask "What number is halfway between 5 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=5 and Y=287.
To find the number halfway between 5 and 287, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 5 and 287 into our formula, we get:
(5 + 287)/2 = 146
Thus, the number halfway between 5 and 287 is 146.
To check that our answer is correct, we subtract 5 from 146 and subtract 146 from 287 and compare the two numbers:
146 - 5 = 141
287 - 146 = 141
As you can see, the halfway number is 141 higher than 5 and 141 lower than 287. Therefore, our halfway between answer of 146 above is correct.
Halfway Between
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Halfway Between 5 and 288
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