
When you ask "What number is halfway between 97 and 513?" 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=513.

To find the number halfway between 97 and 513, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 97 and 513 into our formula, we get:
(97 + 513)/2 = 305
Thus, the number halfway between 97 and 513 is 305.
To check that our answer is correct, we subtract 97 from 305 and subtract 305 from 513 and compare the two numbers:
305 - 97 = 208
513 - 305 = 208
As you can see, the halfway number is 208 higher than 97 and 208 lower than 513. Therefore, our halfway between answer of 305 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 97 and 514
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