When you ask "What number is halfway between 98 and 729?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=98 and Y=729.
To find the number halfway between 98 and 729, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 98 and 729 into our formula, we get:
(98 + 729)/2 = 413.5
Thus, the number halfway between 98 and 729 is 413.5.
To check that our answer is correct, we subtract 98 from 413.5 and subtract 413.5 from 729 and compare the two numbers:
413.5 - 98 = 315.5
729 - 413.5 = 315.5
As you can see, the halfway number is 315.5 higher than 98 and 315.5 lower than 729. Therefore, our halfway between answer of 413.5 above is correct.
Halfway Between
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Halfway Between 98 and 730
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