
When you ask "What number is halfway between 20 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=20 and Y=234.

To find the number halfway between 20 and 234, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 20 and 234 into our formula, we get:
(20 + 234)/2 = 127
Thus, the number halfway between 20 and 234 is 127.
To check that our answer is correct, we subtract 20 from 127 and subtract 127 from 234 and compare the two numbers:
127 - 20 = 107
234 - 127 = 107
As you can see, the halfway number is 107 higher than 20 and 107 lower than 234. Therefore, our halfway between answer of 127 above is correct.
Halfway Between
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Halfway Between 20 and 235
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