When you ask "What number is halfway between 12 and 447?" 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=447.
To find the number halfway between 12 and 447, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 12 and 447 into our formula, we get:
(12 + 447)/2 = 229.5
Thus, the number halfway between 12 and 447 is 229.5.
To check that our answer is correct, we subtract 12 from 229.5 and subtract 229.5 from 447 and compare the two numbers:
229.5 - 12 = 217.5
447 - 229.5 = 217.5
As you can see, the halfway number is 217.5 higher than 12 and 217.5 lower than 447. Therefore, our halfway between answer of 229.5 above is correct.
Halfway Between
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Halfway Between 12 and 448
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