When you ask "What number is halfway between 7 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=7 and Y=82.
To find the number halfway between 7 and 82, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 82 into our formula, we get:
(7 + 82)/2 = 44.5
Thus, the number halfway between 7 and 82 is 44.5.
To check that our answer is correct, we subtract 7 from 44.5 and subtract 44.5 from 82 and compare the two numbers:
44.5 - 7 = 37.5
82 - 44.5 = 37.5
As you can see, the halfway number is 37.5 higher than 7 and 37.5 lower than 82. Therefore, our halfway between answer of 44.5 above is correct.
Halfway Between
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Halfway Between 7 and 83
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