When you ask "What number is halfway between 57 and 177?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=57 and Y=177.
To find the number halfway between 57 and 177, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 57 and 177 into our formula, we get:
(57 + 177)/2 = 117
Thus, the number halfway between 57 and 177 is 117.
To check that our answer is correct, we subtract 57 from 117 and subtract 117 from 177 and compare the two numbers:
117 - 57 = 60
177 - 117 = 60
As you can see, the halfway number is 60 higher than 57 and 60 lower than 177. Therefore, our halfway between answer of 117 above is correct.
Halfway Between
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Halfway Between 57 and 178
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