When you ask "What number is halfway between 84 and 797?" 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=797.
To find the number halfway between 84 and 797, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 84 and 797 into our formula, we get:
(84 + 797)/2 = 440.5
Thus, the number halfway between 84 and 797 is 440.5.
To check that our answer is correct, we subtract 84 from 440.5 and subtract 440.5 from 797 and compare the two numbers:
440.5 - 84 = 356.5
797 - 440.5 = 356.5
As you can see, the halfway number is 356.5 higher than 84 and 356.5 lower than 797. Therefore, our halfway between answer of 440.5 above is correct.
Halfway Between
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Halfway Between 84 and 798
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