When you ask "What number is halfway between 97 and 489?" 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=489.
To find the number halfway between 97 and 489, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 97 and 489 into our formula, we get:
(97 + 489)/2 = 293
Thus, the number halfway between 97 and 489 is 293.
To check that our answer is correct, we subtract 97 from 293 and subtract 293 from 489 and compare the two numbers:
293 - 97 = 196
489 - 293 = 196
As you can see, the halfway number is 196 higher than 97 and 196 lower than 489. Therefore, our halfway between answer of 293 above is correct.
Halfway Between
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