When you ask "What number is halfway between 12 and 430?" 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=430.
To find the number halfway between 12 and 430, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 12 and 430 into our formula, we get:
(12 + 430)/2 = 221
Thus, the number halfway between 12 and 430 is 221.
To check that our answer is correct, we subtract 12 from 221 and subtract 221 from 430 and compare the two numbers:
221 - 12 = 209
430 - 221 = 209
As you can see, the halfway number is 209 higher than 12 and 209 lower than 430. Therefore, our halfway between answer of 221 above is correct.
Halfway Between
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Halfway Between 12 and 431
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