When you ask "What number is halfway between 99 and 245?" 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=245.
To find the number halfway between 99 and 245, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 99 and 245 into our formula, we get:
(99 + 245)/2 = 172
Thus, the number halfway between 99 and 245 is 172.
To check that our answer is correct, we subtract 99 from 172 and subtract 172 from 245 and compare the two numbers:
172 - 99 = 73
245 - 172 = 73
As you can see, the halfway number is 73 higher than 99 and 73 lower than 245. Therefore, our halfway between answer of 172 above is correct.
Halfway Between
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Halfway Between 99 and 246
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