When you ask "What number is halfway between 99 and 247?" 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=247.
To find the number halfway between 99 and 247, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 99 and 247 into our formula, we get:
(99 + 247)/2 = 173
Thus, the number halfway between 99 and 247 is 173.
To check that our answer is correct, we subtract 99 from 173 and subtract 173 from 247 and compare the two numbers:
173 - 99 = 74
247 - 173 = 74
As you can see, the halfway number is 74 higher than 99 and 74 lower than 247. Therefore, our halfway between answer of 173 above is correct.
Halfway Between
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Halfway Between 99 and 248
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