
When you ask "What number is halfway between 30 and 942?" 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=942.

To find the number halfway between 30 and 942, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 942 into our formula, we get:
(30 + 942)/2 = 486
Thus, the number halfway between 30 and 942 is 486.
To check that our answer is correct, we subtract 30 from 486 and subtract 486 from 942 and compare the two numbers:
486 - 30 = 456
942 - 486 = 456
As you can see, the halfway number is 456 higher than 30 and 456 lower than 942. Therefore, our halfway between answer of 486 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 30 and 943
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