When you ask "What number is halfway between 69 and 317?" 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=317.
To find the number halfway between 69 and 317, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 317 into our formula, we get:
(69 + 317)/2 = 193
Thus, the number halfway between 69 and 317 is 193.
To check that our answer is correct, we subtract 69 from 193 and subtract 193 from 317 and compare the two numbers:
193 - 69 = 124
317 - 193 = 124
As you can see, the halfway number is 124 higher than 69 and 124 lower than 317. Therefore, our halfway between answer of 193 above is correct.
Halfway Between
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Halfway Between 69 and 318
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