When you ask "What number is halfway between 1 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=1 and Y=430.
To find the number halfway between 1 and 430, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 1 and 430 into our formula, we get:
(1 + 430)/2 = 215.5
Thus, the number halfway between 1 and 430 is 215.5.
To check that our answer is correct, we subtract 1 from 215.5 and subtract 215.5 from 430 and compare the two numbers:
215.5 - 1 = 214.5
430 - 215.5 = 214.5
As you can see, the halfway number is 214.5 higher than 1 and 214.5 lower than 430. Therefore, our halfway between answer of 215.5 above is correct.
Halfway Between
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Halfway Between 1 and 431
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