
When you ask "What number is halfway between 7 and 215?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=215.

To find the number halfway between 7 and 215, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 215 into our formula, we get:
(7 + 215)/2 = 111
Thus, the number halfway between 7 and 215 is 111.
To check that our answer is correct, we subtract 7 from 111 and subtract 111 from 215 and compare the two numbers:
111 - 7 = 104
215 - 111 = 104
As you can see, the halfway number is 104 higher than 7 and 104 lower than 215. Therefore, our halfway between answer of 111 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 7 and 216
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