When you ask "What number is halfway between 38 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=38 and Y=217.
To find the number halfway between 38 and 217, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 38 and 217 into our formula, we get:
(38 + 217)/2 = 127.5
Thus, the number halfway between 38 and 217 is 127.5.
To check that our answer is correct, we subtract 38 from 127.5 and subtract 127.5 from 217 and compare the two numbers:
127.5 - 38 = 89.5
217 - 127.5 = 89.5
As you can see, the halfway number is 89.5 higher than 38 and 89.5 lower than 217. Therefore, our halfway between answer of 127.5 above is correct.
Halfway Between
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Halfway Between 38 and 218
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