When you ask "What number is halfway between 2 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=2 and Y=117.
To find the number halfway between 2 and 117, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 2 and 117 into our formula, we get:
(2 + 117)/2 = 59.5
Thus, the number halfway between 2 and 117 is 59.5.
To check that our answer is correct, we subtract 2 from 59.5 and subtract 59.5 from 117 and compare the two numbers:
59.5 - 2 = 57.5
117 - 59.5 = 57.5
As you can see, the halfway number is 57.5 higher than 2 and 57.5 lower than 117. Therefore, our halfway between answer of 59.5 above is correct.
Halfway Between
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Halfway Between 2 and 118
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