When you ask "What number is halfway between 57 and 242?" 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=242.
To find the number halfway between 57 and 242, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 57 and 242 into our formula, we get:
(57 + 242)/2 = 149.5
Thus, the number halfway between 57 and 242 is 149.5.
To check that our answer is correct, we subtract 57 from 149.5 and subtract 149.5 from 242 and compare the two numbers:
149.5 - 57 = 92.5
242 - 149.5 = 92.5
As you can see, the halfway number is 92.5 higher than 57 and 92.5 lower than 242. Therefore, our halfway between answer of 149.5 above is correct.
Halfway Between
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Halfway Between 57 and 243
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