When you ask "What number is halfway between 77 and 748?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=77 and Y=748.
To find the number halfway between 77 and 748, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 77 and 748 into our formula, we get:
(77 + 748)/2 = 412.5
Thus, the number halfway between 77 and 748 is 412.5.
To check that our answer is correct, we subtract 77 from 412.5 and subtract 412.5 from 748 and compare the two numbers:
412.5 - 77 = 335.5
748 - 412.5 = 335.5
As you can see, the halfway number is 335.5 higher than 77 and 335.5 lower than 748. Therefore, our halfway between answer of 412.5 above is correct.
Halfway Between
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Halfway Between 77 and 749
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