When you ask "What number is halfway between 97 and 389?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=97 and Y=389.
To find the number halfway between 97 and 389, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 97 and 389 into our formula, we get:
(97 + 389)/2 = 243
Thus, the number halfway between 97 and 389 is 243.
To check that our answer is correct, we subtract 97 from 243 and subtract 243 from 389 and compare the two numbers:
243 - 97 = 146
389 - 243 = 146
As you can see, the halfway number is 146 higher than 97 and 146 lower than 389. Therefore, our halfway between answer of 243 above is correct.
Halfway Between
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Halfway Between 97 and 390
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