When you ask "What number is halfway between 57 and 249?" 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=249.
To find the number halfway between 57 and 249, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 57 and 249 into our formula, we get:
(57 + 249)/2 = 153
Thus, the number halfway between 57 and 249 is 153.
To check that our answer is correct, we subtract 57 from 153 and subtract 153 from 249 and compare the two numbers:
153 - 57 = 96
249 - 153 = 96
As you can see, the halfway number is 96 higher than 57 and 96 lower than 249. Therefore, our halfway between answer of 153 above is correct.
Halfway Between
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Halfway Between 57 and 250
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