When you ask "What number is halfway between 17 and 442?" 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=442.
To find the number halfway between 17 and 442, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 17 and 442 into our formula, we get:
(17 + 442)/2 = 229.5
Thus, the number halfway between 17 and 442 is 229.5.
To check that our answer is correct, we subtract 17 from 229.5 and subtract 229.5 from 442 and compare the two numbers:
229.5 - 17 = 212.5
442 - 229.5 = 212.5
As you can see, the halfway number is 212.5 higher than 17 and 212.5 lower than 442. Therefore, our halfway between answer of 229.5 above is correct.
Halfway Between
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Halfway Between 17 and 443
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