When you ask "What number is halfway between 18 and 230?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=18 and Y=230.
To find the number halfway between 18 and 230, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 18 and 230 into our formula, we get:
(18 + 230)/2 = 124
Thus, the number halfway between 18 and 230 is 124.
To check that our answer is correct, we subtract 18 from 124 and subtract 124 from 230 and compare the two numbers:
124 - 18 = 106
230 - 124 = 106
As you can see, the halfway number is 106 higher than 18 and 106 lower than 230. Therefore, our halfway between answer of 124 above is correct.
Halfway Between
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Halfway Between 18 and 231
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