
When you ask "What number is halfway between 2 and 130?" 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=130.

To find the number halfway between 2 and 130, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 2 and 130 into our formula, we get:
(2 + 130)/2 = 66
Thus, the number halfway between 2 and 130 is 66.
To check that our answer is correct, we subtract 2 from 66 and subtract 66 from 130 and compare the two numbers:
66 - 2 = 64
130 - 66 = 64
As you can see, the halfway number is 64 higher than 2 and 64 lower than 130. Therefore, our halfway between answer of 66 above is correct.
Halfway Between
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Halfway Between 2 and 131
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