When you ask "What number is halfway between 81 and 844?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=81 and Y=844.
To find the number halfway between 81 and 844, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 81 and 844 into our formula, we get:
(81 + 844)/2 = 462.5
Thus, the number halfway between 81 and 844 is 462.5.
To check that our answer is correct, we subtract 81 from 462.5 and subtract 462.5 from 844 and compare the two numbers:
462.5 - 81 = 381.5
844 - 462.5 = 381.5
As you can see, the halfway number is 381.5 higher than 81 and 381.5 lower than 844. Therefore, our halfway between answer of 462.5 above is correct.
Halfway Between
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Halfway Between 81 and 845
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