When you ask "What number is halfway between 31 and 328?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=31 and Y=328.
To find the number halfway between 31 and 328, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 31 and 328 into our formula, we get:
(31 + 328)/2 = 179.5
Thus, the number halfway between 31 and 328 is 179.5.
To check that our answer is correct, we subtract 31 from 179.5 and subtract 179.5 from 328 and compare the two numbers:
179.5 - 31 = 148.5
328 - 179.5 = 148.5
As you can see, the halfway number is 148.5 higher than 31 and 148.5 lower than 328. Therefore, our halfway between answer of 179.5 above is correct.
Halfway Between
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Halfway Between 31 and 329
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