When you ask "What number is halfway between 29 and 816?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=29 and Y=816.
To find the number halfway between 29 and 816, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 29 and 816 into our formula, we get:
(29 + 816)/2 = 422.5
Thus, the number halfway between 29 and 816 is 422.5.
To check that our answer is correct, we subtract 29 from 422.5 and subtract 422.5 from 816 and compare the two numbers:
422.5 - 29 = 393.5
816 - 422.5 = 393.5
As you can see, the halfway number is 393.5 higher than 29 and 393.5 lower than 816. Therefore, our halfway between answer of 422.5 above is correct.
Halfway Between
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Halfway Between 29 and 817
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