When you ask "What number is halfway between 17 and 612?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=17 and Y=612.
To find the number halfway between 17 and 612, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 17 and 612 into our formula, we get:
(17 + 612)/2 = 314.5
Thus, the number halfway between 17 and 612 is 314.5.
To check that our answer is correct, we subtract 17 from 314.5 and subtract 314.5 from 612 and compare the two numbers:
314.5 - 17 = 297.5
612 - 314.5 = 297.5
As you can see, the halfway number is 297.5 higher than 17 and 297.5 lower than 612. Therefore, our halfway between answer of 314.5 above is correct.
Halfway Between
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Halfway Between 17 and 613
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