When you ask "What number is halfway between 88 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=88 and Y=717.
To find the number halfway between 88 and 717, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 88 and 717 into our formula, we get:
(88 + 717)/2 = 402.5
Thus, the number halfway between 88 and 717 is 402.5.
To check that our answer is correct, we subtract 88 from 402.5 and subtract 402.5 from 717 and compare the two numbers:
402.5 - 88 = 314.5
717 - 402.5 = 314.5
As you can see, the halfway number is 314.5 higher than 88 and 314.5 lower than 717. Therefore, our halfway between answer of 402.5 above is correct.
Halfway Between
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Halfway Between 88 and 718
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