When you ask "What number is halfway between 8 and 102?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=8 and Y=102.
To find the number halfway between 8 and 102, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 102 into our formula, we get:
(8 + 102)/2 = 55
Thus, the number halfway between 8 and 102 is 55.
To check that our answer is correct, we subtract 8 from 55 and subtract 55 from 102 and compare the two numbers:
55 - 8 = 47
102 - 55 = 47
As you can see, the halfway number is 47 higher than 8 and 47 lower than 102. Therefore, our halfway between answer of 55 above is correct.
Halfway Between
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Halfway Between 8 and 103
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