
When you ask "What number is halfway between 69 and 717?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=69 and Y=717.

To find the number halfway between 69 and 717, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 717 into our formula, we get:
(69 + 717)/2 = 393
Thus, the number halfway between 69 and 717 is 393.
To check that our answer is correct, we subtract 69 from 393 and subtract 393 from 717 and compare the two numbers:
393 - 69 = 324
717 - 393 = 324
As you can see, the halfway number is 324 higher than 69 and 324 lower than 717. Therefore, our halfway between answer of 393 above is correct.
Halfway Between
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Halfway Between 69 and 718
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