When you ask "What number is halfway between 97 and 490?" 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=490.
To find the number halfway between 97 and 490, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 97 and 490 into our formula, we get:
(97 + 490)/2 = 293.5
Thus, the number halfway between 97 and 490 is 293.5.
To check that our answer is correct, we subtract 97 from 293.5 and subtract 293.5 from 490 and compare the two numbers:
293.5 - 97 = 196.5
490 - 293.5 = 196.5
As you can see, the halfway number is 196.5 higher than 97 and 196.5 lower than 490. Therefore, our halfway between answer of 293.5 above is correct.
Halfway Between
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Halfway Between 97 and 491
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