When you ask "What number is halfway between 97 and 778?" 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=778.
To find the number halfway between 97 and 778, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 97 and 778 into our formula, we get:
(97 + 778)/2 = 437.5
Thus, the number halfway between 97 and 778 is 437.5.
To check that our answer is correct, we subtract 97 from 437.5 and subtract 437.5 from 778 and compare the two numbers:
437.5 - 97 = 340.5
778 - 437.5 = 340.5
As you can see, the halfway number is 340.5 higher than 97 and 340.5 lower than 778. Therefore, our halfway between answer of 437.5 above is correct.
Halfway Between
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Halfway Between 97 and 779
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