When you ask "What number is halfway between 99 and 343?" 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=343.
To find the number halfway between 99 and 343, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 99 and 343 into our formula, we get:
(99 + 343)/2 = 221
Thus, the number halfway between 99 and 343 is 221.
To check that our answer is correct, we subtract 99 from 221 and subtract 221 from 343 and compare the two numbers:
221 - 99 = 122
343 - 221 = 122
As you can see, the halfway number is 122 higher than 99 and 122 lower than 343. Therefore, our halfway between answer of 221 above is correct.
Halfway Between
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Halfway Between 99 and 344
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