When you ask "What number is halfway between 5 and 217?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=5 and Y=217.
To find the number halfway between 5 and 217, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 5 and 217 into our formula, we get:
(5 + 217)/2 = 111
Thus, the number halfway between 5 and 217 is 111.
To check that our answer is correct, we subtract 5 from 111 and subtract 111 from 217 and compare the two numbers:
111 - 5 = 106
217 - 111 = 106
As you can see, the halfway number is 106 higher than 5 and 106 lower than 217. Therefore, our halfway between answer of 111 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 5 and 218
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