When you ask "What number is halfway between 12 and 234?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=12 and Y=234.
To find the number halfway between 12 and 234, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 12 and 234 into our formula, we get:
(12 + 234)/2 = 123
Thus, the number halfway between 12 and 234 is 123.
To check that our answer is correct, we subtract 12 from 123 and subtract 123 from 234 and compare the two numbers:
123 - 12 = 111
234 - 123 = 111
As you can see, the halfway number is 111 higher than 12 and 111 lower than 234. Therefore, our halfway between answer of 123 above is correct.
Halfway Between
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Halfway Between 12 and 235
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