When you ask "What number is halfway between 57 and 245?" 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=245.
To find the number halfway between 57 and 245, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 57 and 245 into our formula, we get:
(57 + 245)/2 = 151
Thus, the number halfway between 57 and 245 is 151.
To check that our answer is correct, we subtract 57 from 151 and subtract 151 from 245 and compare the two numbers:
151 - 57 = 94
245 - 151 = 94
As you can see, the halfway number is 94 higher than 57 and 94 lower than 245. Therefore, our halfway between answer of 151 above is correct.
Halfway Between
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Halfway Between 57 and 246
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