When you ask "What number is halfway between 99 and 297?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=99 and Y=297.
To find the number halfway between 99 and 297, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 99 and 297 into our formula, we get:
(99 + 297)/2 = 198
Thus, the number halfway between 99 and 297 is 198.
To check that our answer is correct, we subtract 99 from 198 and subtract 198 from 297 and compare the two numbers:
198 - 99 = 99
297 - 198 = 99
As you can see, the halfway number is 99 higher than 99 and 99 lower than 297. Therefore, our halfway between answer of 198 above is correct.
Halfway Between
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Halfway Between 99 and 298
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