When you ask "What number is halfway between 84 and 724?" 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=724.
To find the number halfway between 84 and 724, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 84 and 724 into our formula, we get:
(84 + 724)/2 = 404
Thus, the number halfway between 84 and 724 is 404.
To check that our answer is correct, we subtract 84 from 404 and subtract 404 from 724 and compare the two numbers:
404 - 84 = 320
724 - 404 = 320
As you can see, the halfway number is 320 higher than 84 and 320 lower than 724. Therefore, our halfway between answer of 404 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 84 and 725
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