When you ask "What number is halfway between 84 and 478?" 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=478.
To find the number halfway between 84 and 478, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 84 and 478 into our formula, we get:
(84 + 478)/2 = 281
Thus, the number halfway between 84 and 478 is 281.
To check that our answer is correct, we subtract 84 from 281 and subtract 281 from 478 and compare the two numbers:
281 - 84 = 197
478 - 281 = 197
As you can see, the halfway number is 197 higher than 84 and 197 lower than 478. Therefore, our halfway between answer of 281 above is correct.
Halfway Between
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Halfway Between 84 and 479
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