When you ask "What number is halfway between 2 and 101?" 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=101.
To find the number halfway between 2 and 101, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 2 and 101 into our formula, we get:
(2 + 101)/2 = 51.5
Thus, the number halfway between 2 and 101 is 51.5.
To check that our answer is correct, we subtract 2 from 51.5 and subtract 51.5 from 101 and compare the two numbers:
51.5 - 2 = 49.5
101 - 51.5 = 49.5
As you can see, the halfway number is 49.5 higher than 2 and 49.5 lower than 101. Therefore, our halfway between answer of 51.5 above is correct.
Halfway Between
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Halfway Between 2 and 102
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