When you ask "What number is halfway between 3 and 56?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=3 and Y=56.
To find the number halfway between 3 and 56, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 3 and 56 into our formula, we get:
(3 + 56)/2 = 29.5
Thus, the number halfway between 3 and 56 is 29.5.
To check that our answer is correct, we subtract 3 from 29.5 and subtract 29.5 from 56 and compare the two numbers:
29.5 - 3 = 26.5
56 - 29.5 = 26.5
As you can see, the halfway number is 26.5 higher than 3 and 26.5 lower than 56. Therefore, our halfway between answer of 29.5 above is correct.
Halfway Between
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Halfway Between 3 and 57
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