When you ask "What number is halfway between 3 and 117?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=117.
To find the number halfway between 3 and 117, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 117 into our formula, we get:
(3 + 117)/2 = 60
Thus, the number halfway between 3 and 117 is 60.
To check that our answer is correct, we subtract 3 from 60 and subtract 60 from 117 and compare the two numbers:
60 - 3 = 57
117 - 60 = 57
As you can see, the halfway number is 57 higher than 3 and 57 lower than 117. Therefore, our halfway between answer of 60 above is correct.
Halfway Between
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Halfway Between 3 and 118
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