
When you ask "What number is halfway between 30 and 874?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=874.

To find the number halfway between 30 and 874, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 874 into our formula, we get:
(30 + 874)/2 = 452
Thus, the number halfway between 30 and 874 is 452.
To check that our answer is correct, we subtract 30 from 452 and subtract 452 from 874 and compare the two numbers:
452 - 30 = 422
874 - 452 = 422
As you can see, the halfway number is 422 higher than 30 and 422 lower than 874. Therefore, our halfway between answer of 452 above is correct.
Halfway Between
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Halfway Between 30 and 875
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