When you ask "What number is halfway between 69 and 82?" 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=82.
To find the number halfway between 69 and 82, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 82 into our formula, we get:
(69 + 82)/2 = 75.5
Thus, the number halfway between 69 and 82 is 75.5.
To check that our answer is correct, we subtract 69 from 75.5 and subtract 75.5 from 82 and compare the two numbers:
75.5 - 69 = 6.5
82 - 75.5 = 6.5
As you can see, the halfway number is 6.5 higher than 69 and 6.5 lower than 82. Therefore, our halfway between answer of 75.5 above is correct.
Halfway Between
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Halfway Between 69 and 83
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