When you ask "What number is halfway between 17 and 322?" 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=322.
To find the number halfway between 17 and 322, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 17 and 322 into our formula, we get:
(17 + 322)/2 = 169.5
Thus, the number halfway between 17 and 322 is 169.5.
To check that our answer is correct, we subtract 17 from 169.5 and subtract 169.5 from 322 and compare the two numbers:
169.5 - 17 = 152.5
322 - 169.5 = 152.5
As you can see, the halfway number is 152.5 higher than 17 and 152.5 lower than 322. Therefore, our halfway between answer of 169.5 above is correct.
Halfway Between
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Halfway Between 17 and 323
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